Protocol - Caffeine Intake

Description

These self-administered questions can be used to inquire about the frequency of an individual’s consumption of beverages containing caffeine. Various time frames, ranging from once per month to six or more times per day, are arrayed on the response card for the respondent to use in assessing caffeine intake. The protocol also includes scoring procedures to convert an individual’s responses to an estimate of caffeine intake in milligrams.

Specific Instructions

None

Availability

Available

Download PDF

Protocol

Supplemental Beverage Questions

HOW OFTEN DID YOU DRINK THE BEVERAGE? (MARK ONE)

AMOUNT

Never or less than once per month

1 - 3 per month

1 per week

2 - 4 per week

5 - 6 per week

1 per day

2 - 3 per day

4 - 5 per day

6+ per day

Medium serving Size

Your Serving Size

Decaffeinated coffee (Instant & brewed)

1 Cup (8 oz)

Instant coffee, not decaffeinated (Including flavored types)

1 Cup (8 oz)

Brewed coffee, not decaffeinated

1 Cup (8 oz)

Decaffeinated espresso and espresso drinks (Latte, Mocha, Americano)

1 Shot of espresso

Espresso and espresso drinks, not decaffeinated (Latte, Mocha, Americano)

1 Shot of espresso

Herbal or decaffeinated tea (Instant, bottled, and brewed)

1 Cup (8 oz)

Green tea (Not decaffeinated-instant, bottled, and brewed)

1 Cup (8 oz)

Black tea such as Lipton®, or Earl Grey (Not decaffeinated-instant, bottled, and brewed)

1 Cup (8 oz)

Jolt®, Surge®, Mountain Dew®, Red Bull® and other highly caffeinated sodas

1 Can (12 oz)

Regular colas and root beer (With caffeine, not diet)

1 Can (12 oz)

Diet colas and diet root beer (With caffeine)

1 Can (12 oz)

Regular colas and root beer (Caffeine free, not diet)

1 Can (12 oz)

Diet colas and diet root beer (Caffeine free)

1 Can (12 oz)

Scoring Procedure: The first phase of processing is to calculate the number of annual servings for each Beverage Questionnaire item. This is done by multiplying the reported frequency by the reported portion size. For example, a participant reporting a frequency of 5-6 per week and a portion size of Large for the beverage item "Espresso and espresso drinks, not decaffeinated" would be assigned 414 annual servings of "Espresso and espresso drinks, not decaffeinated." That represents 276 annual servings for 5-6 per week (see Table 1 for beverage frequencies) multiplied by 1.5 for Large (see Table 2 for portion size below).

Table 1. Formats for beverage frequencies

Code	Label	Serving Ratio
1	1 per week	52
2	2 to 4 per week	144
3	5 to 6 per week	276
4	1 per day	365
5	2 to 3 per day	852
6	4 to 5 per day	1,560
7	6+ per day	2,190

Table 2. Formats for beverage portion size

Code	Label	Serving Ratio
1	S	0.5
2	M	1.0
3	L	1.5

Caffeine Database The second phase of processing involves calculating annual caffeine consumed. For each beverage item the annual servings are multiplied by the single serving caffeine data for that food item, which is found in the caffeine database. Each record in the caffeine database represents the caffeine content of a single serving of a single food item. For example, when calculating annual caffeine consumed for "Espresso and espresso drinks, not decaffeinated," the caffeine value is multiplied by the annual servings for "Espresso and espresso drinks, not decaffeinated" (arrived at in the first phase), and divided by 365, resulting in the average daily intake of caffeine for "Espresso and espresso drinks, not decaffeinated."

Beverage Item	Amount	Caffeine (mg)
Decaffeinated coffee (instant & brewed)	1 cup	2.51
Instant coffee, not decaffeinated (including flavored types)	1 cup	75.41
Brewed coffee, not decaffeinated	1 cup	137.34
Decaffeinated espresso and espresso drinks	1.5 oz or 1 shot of espresso	0.73
Espresso and espresso drinks (Latte, Mocha, Americano)	1.5 oz. or 1 shot of espresso	51.50
Herbal or decaffeinated tea (Instant, bottled, and brewed)	1 cup	0
Green tea (Not decaffeinated-instant, bottled, and brewed)	1 cup	47.36
Black tea such as Lipton®, or Early Grey (Not decaffeinated-instant, bottled, and brewed)	1 cup	37.80
Jolt®, Surge®, Mountain Dew®, Red Bull® and other highly caffeinated sodas	1 can, 12 fl.Oz.	71.68
Regular colas and root beer (With caffeine, not diet)	1 can, 12 fl.Oz.	37.16
Diet colas and diet root beer (With caffeine)	1 can, 12 fl.Oz.	49.73
Regular colas and root beer (Caffeine free, not diet)	1 can, 12 fl.Oz.	0
Diet colas and diet root beer (Caffeine free)	1 can, 12 fl.OZ	0

Lipton® is a registered trademark, Unilever United States, Inc.; Jolt® is a registered trademark, Wet Planet Beverages; Surge® is a registered trademark, The Coca-Cola Company; Mountain Dew® is a registered trademark, PepsiCo, Inc.; Red Bull® is a registered trademark, Red Bull GmbH.

Personnel and Training Required

None

Equipment Needs

None

Requirements

Requirement Category	Required
Major equipment	No
Specialized training	No
Specialized requirements for biospecimen collection	No
Average time of greater than 15 minutes in an unaffected individual	No

Mode of Administration

Self-administered questionnaire

Lifestage

Adult, Senior

Participants

An individual aged 18 years or older

Selection Rationale

The Working Group felt it was important to include a protocol to measure caffeine intake and specific sources due to the increased consumption of caffeinated beverages.

Language

Chinese, English

Standards

Standard	Name	ID	Source
Logical Observation Identifiers Names and Codes (LOINC)	PhenX - caffeine protocol	62280-3	LOINC
caDSR Form	PhenX PX050301 - Caffeine Intake	5849655	caDSR Form

Derived Variables

None

Process and Review

The Expert Review Panel #1 reviewed the measures in the Anthropometrics, Diabetes, Physical Activity and Physical Fitness, and Nutrition and Dietary Supplements domains.

Guidance from the ERP includes:

• No significant changes to measure

Back-compatible: no changes to Data Dictionary

Previous version in Toolkit archive (link)

Protocol Name from Source

Fred Hutchinson Cancer Research Center, Caffeine Questionnaire, 2004

Source

Fred Hutchinson Cancer Research Center. (2004). Caffeine questionnaire. Retrieved from http://sharedresources.fhcrc.org/documents/caffeine-questionnaire

General References

Song, J. Y., Kristal, A. R., Wicklund, K. G., Cushing-Haugen, K. L., & Rossing, M. (2008). Coffee, tea, colas, and risk of epithelial ovarian cancer. Cancer Epidemiology Biomarkers and Prevention, 17(3), 712-716.

Drea, J., & da Costa, T. (2005). Is coffee a functional food? British Journal of Nutrition, 93(6), 773-782.

Protocol ID

50301

Variables

Export Variables

Variable Name	Variable ID	Variable Description	dbGaP Mapping
PX050301_Black_Tea_Frequency
	PX050301080100	HOW OFTEN DID YOU DRINK Black tea such as more Lipton, or Earl Grey (Not decaffeinated-instant, bottled, and brewed)? (MARK ONE) show less	N/A
PX050301_Black_Tea_Quantity
	PX050301080200	What is your serving size for Black tea such more as Lipton, or Earl Grey (Not decaffeinated-instant, bottled, and brewed)? show less	N/A
PX050301_Brewed_Coffee_Frequency
	PX050301030100	HOW OFTEN DID YOU DRINK Brewed coffee, not more decaffeinated? (MARK ONE) show less	Variable Mapping
PX050301_Brewed_Coffee_Quantity
	PX050301030200	What is your serving size for Brewed coffee, more not decaffeinated? show less	Variable Mapping
PX050301_Decaf_Coffee_Frequency
	PX050301010100	HOW OFTEN DID YOU DRINK Decaffeinated coffee more (Instant & brewed)? (MARK ONE) show less	Variable Mapping
PX050301_Decaf_Coffee_Quantity
	PX050301010200	What is your serving size for Decaffeinated more coffee (Instant & brewed)? show less	N/A
PX050301_Decaf_Espresso_Frequency
	PX050301040100	HOW OFTEN DID YOU DRINK Decaffeinated more espresso and espresso drinks (Latte, Mocha, Americano)? (MARK ONE) show less	N/A
PX050301_Decaf_Espresso_Quantity
	PX050301040200	What is your serving size for Decaffeinated more espresso and espresso drinks (Latte, Mocha, Americano)? show less	N/A
PX050301_Decaf_Tea_Frequency
	PX050301060100	HOW OFTEN DID YOU DRINK Herbal or more decaffeinated tea (Instant, bottled, and brewed)? (MARK ONE) show less	Variable Mapping
PX050301_Decaf_Tea_Quantity
	PX050301060200	What is your serving size for Herbal or more decaffeinated tea (Instant, bottled, and brewed)? show less	Variable Mapping
PX050301_Diet_Cola_Caffeine_Free_Frequency
	PX050301130100	HOW OFTEN DID YOU DRINK Diet colas and diet more root beer (Caffeine free)? (MARK ONE) show less	Variable Mapping
PX050301_Diet_Cola_Caffeine_Free_Quantity
	PX050301130200	What is your serving size for Diet colas and more diet root beer (Caffeine free)? show less	N/A
PX050301_Diet_Cola_Frequency
	PX050301110100	HOW OFTEN DID YOU DRINK Diet colas and diet more root beer (With caffeine)? (MARK ONE) show less	Variable Mapping
PX050301_Diet_Cola_Quantity
	PX050301110200	What is your serving size for Diet colas and more diet root beer (With caffeine)? show less	N/A
PX050301_Espresso_Frequency
	PX050301050100	HOW OFTEN DID YOU DRINK Espresso and more espresso drinks, not decaffeinated (Latte, Mocha, Americano)? (MARK ONE) show less	Variable Mapping
PX050301_Espresso_Quantity
	PX050301050200	What is your serving size for Espresso and more espresso drinks, not decaffeinated (Latte, Mocha, Americano)? show less	N/A
PX050301_Green_Tea_Frequency
	PX050301070100	HOW OFTEN DID YOU DRINK Green tea (Not more decaffeinated-instant, bottled, and brewed)? (MARK ONE) show less	Variable Mapping
PX050301_Green_Tea_Quantity
	PX050301070200	What is your serving size for Green tea (Not more decaffeinated-instant, bottled, and brewed)? show less	N/A
PX050301_High_Caffeine_Soda_Frequency
	PX050301090100	HOW OFTEN DID YOU DRINK Jolt, Surge, more Mountain Dew, Red Bull and other highly caffeinated sodas? (MARK ONE) show less	N/A
PX050301_High_Caffeine_Soda_Quantity
	PX050301090200	What is your serving size for Jolt, Surge, more Mountain Dew, Red Bull and other highly caffeinated sodas? show less	N/A
PX050301_Instant_Coffee_Frequency
	PX050301020100	HOW OFTEN DID YOU DRINK Instant coffee, not more decaffeinated (Including flavored types)? (MARK ONE) show less	Variable Mapping
PX050301_Instant_Coffee_Quantity
	PX050301020200	What is your serving size for Instant more coffee, not decaffeinated (Including flavored types)? show less	N/A
PX050301_Regular_Cola_Caffeine_Free_Frequency
	PX050301120100	HOW OFTEN DID YOU DRINK Regular colas and more root beer (Caffeine free, not diet)? (MARK ONE) show less	Variable Mapping
PX050301_Regular_Cola_Caffeine_Free_Quantity
	PX050301120200	What is your serving size for Regular colas more and root beer (Caffeine free, not diet)? show less	N/A
PX050301_Regular_Cola_Frequency
	PX050301100100	HOW OFTEN DID YOU DRINK Regular colas and more root beer (With caffeine, not diet)? (MARK ONE) show less	Variable Mapping
PX050301_Regular_Cola_Quantity
	PX050301100200	What is your serving size for Regular colas more and root beer (With caffeine, not diet)? show less	N/A

Nutrition and Dietary Supplements

Measure Name

Caffeine Intake

Release Date

October 30, 2009

Definition

A measure to estimate an individual’s caffeine intake.

Purpose

There are functional and health effects associated with caffeine consumption. Some of these effects include promoting enhanced energy expenditure for weight loss, slowing early memory loss, keeping alert, and preventing fatigue. Epidemiological and experimental studies have shown positive effects associated with caffeine consumption, especially from regular coffee drinking, on various aspects of health, such as psychoactive responses (alertness, mood change), neurological (infant hyperactivity, Alzheimer’s and Parkinson’s diseases) and metabolic disorders (diabetes, gallstones, liver cirrhosis), and gonad and liver function.

Keywords

Nutrition and Dietary Supplements

Measure Protocols

Protocol ID	Protocol Name
50301	Caffeine Intake

Publications

Anderson, A. J., et al. (2017) Poor Consumption of Fiber, not fat, is Associated with Active Disease in Inflammatory Bowel Disease. Gastroenterology. 2017 April; 152(5 S1): S365. doi: 10.1016/S0016-5085(17)31474-9

Mapping for PX050301_Brewed_Coffee_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Atherosclerosis Risk in Communities (ARIC) Cohort	phv00205120	[Beverages]. In the past year, how often on average did you consume... Coffee, not decaffeinated; 1 c. Q61 [Dietary Intake Form, exam 1]
Atherosclerosis Risk in Communities (ARIC) Cohort	phv00214114	How many cups of regular coffee do you drink on a regular day?
Atherosclerosis Risk in Communities (ARIC) Cohort	phv00205340	[Beverages]. In the past year, how often on average did you consume... Coffee, not decaffeinated; 1 c. Q61 [Dietary Intake Form (DTIC), exam 3]
Atherosclerosis Risk in Communities (ARIC) Cohort	phv00205241	[Miscellaneous]. In the past year, how often on average did you consume... Coffee, not decaffeinated; 1 c. Q61 [Dietary Intake Form, exam 2]
Cardiovascular Health Study (CHS) Cohort	phv00197470	How many cups of regular coffee do you drink on a regular day?
Cardiovascular Health Study (CHS) Cohort	phv00100233	COFFEE, NOT DECAFFEINATED
Framingham Cohort	phv00070148	DERIVED FIELD: SERVINGS PER WEEK - COFFEE
Framingham Cohort	phv00069981	FFQ: COFFEE (1 CUP)
Framingham Cohort	phv00070853	CUP OF COFFEE
Framingham Cohort	phv00001854	INTERIM HISTORY OF DIET: COFFEE-CUPS/DAY
Framingham Cohort	phv00156894	FFQ: COFFEE
Framingham Cohort	phv00157258	DERIVED FIELD:COFFEE
Framingham Cohort	phv00157527	FFQ: COFFEE (1 CUP)
Framingham Cohort	phv00157699	DERIVED FIELD: SERVINGS PER WEEK - COFFEE
Framingham Cohort	phv00158004	FFQ: COFFEE (1 CUP)
Framingham Cohort	phv00158321	FFQ: COFFEE (1 CUP)
Framingham Cohort	phv00158502	DERIVED FIELD: SERVINGS PER WEEK - COFFEE
Framingham Cohort	phv00162254	FFQ: COFFEE
Framingham Cohort	phv00162636	DERIVED FIELD:COFFEE
Framingham Cohort	phv00172595	FFQ: Coffee with caffeine
Framingham Cohort	phv00173050	Derived field: Coffee with caffeine
Framingham Cohort	phv00007764	COFFEE CUPS PER DAY
Framingham Cohort	phv00002069	INTERIM HISTORY OF DIET: COFFEE-CUPS/DAY
Framingham Cohort	phv00002248	INTERIM HISTORY OF DIET: COFFEE-CUPS/DAY
Framingham Cohort	phv00003386	DIET:
Framingham Cohort	phv00003840	# CUPS OF CAFFEINATED COFFEE PER DAY
Framingham Cohort	phv00004256	# CUPS OF CAFFEINATED COFFEE PER DAY
Framingham Cohort	phv00004665	COFFEE/CAFFEINATED - CUPS PER DAY OVER PAST YEAR
Framingham Cohort	phv00004667	COFFEE/DECAFFEINATED - CUPS PER DAY OVER PAST YEAR
Framingham Cohort	phv00005016	COFFEE/CAFFEINATED -
Framingham Cohort	phv00005622	COFFEE/CAFFEINATED - CUPS PER DAY
Framingham Cohort	phv00005624	COFFEE/DECAFFEINATED - CUPS PER DAY
Framingham Cohort	phv00008452	CUPS OF REGULAR COFFEE A DAY
Framingham Cohort	phv00008845	# CUPS OF CAFFEINATED COFFEE PER DAY
Framingham Cohort	phv00009255	COFFEE/CAFFEINATED - CUPS PER DAY
Framingham Cohort	phv00009758	# CUPS OF CAFFEINATED COFFEE PER DAY
Framingham Cohort	phv00055311	How many cups of regular coffee do you drink on a regular day?
Framingham Cohort	phv00056746	On a typical day, how many cups of regular coffee (with caffeine) do you drink?
Framingham Cohort	phv00068383	FFQ: COFFEE (1 CUP)
Framingham Cohort	phv00068951	FFQ: COFFEE (1 CUP)
Framingham Cohort	phv00069124	DERIVED FIELD: SERVINGS PER WEEK - COFFEE
GENEVA: The Atherosclerosis Risk in Communities (ARIC) Study	phv00080666	Consumed coffee [in the past year]
Multi-Ethnic Study of Atherosclerosis (MESA) Cohort	phv00218679	FREQ118 : COFFEE
The Genomics and Randomized Trials Network (GARNET) Vitamin Intervention Stroke Prevention (VISP) trial	phv00168236	How often do you consume Coffee; 1 c.?
Women's Health Initiative	phv00079339	Cups of regular coffee
Women's Health Initiative	phv00079338	Drink coffee each day
Women's Health Initiative	phv00078783	Number of regular cups of coffee, day
Women's Health Initiative	phv00078782	Drink coffee each day

Mapping for PX050301_Brewed_Coffee_Quantity

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Multi-Ethnic Study of Atherosclerosis (MESA) Cohort	phv00218680	SERV118 : COFFEE

Mapping for PX050301_Decaf_Coffee_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Cardiovascular Health Study (CHS) Cohort	phv00198916	10a cups of caffeinated coffee
Cardiovascular Health Study (CHS) Cohort	phv00100232	DECAFFEINATED COFFEE
Framingham Cohort	phv00002470	INTERIM HISTORY OF DIET: COFFEE (DECAF) CUPS/DAY
Framingham Cohort	phv00173049	Derived field: Decaf coffee
Framingham Cohort	phv00172594	FFQ: Decaffeinated coffee
Framingham Cohort	phv00162635	DERIVED FIELD:DECAF COFFEE
Framingham Cohort	phv00162253	FFQ: DECAFFEINATED COFFEE
Framingham Cohort	phv00158501	DERIVED FIELD: SERVINGS PER WEEK - DECAFFEINATED COFFEE
Framingham Cohort	phv00158320	FFQ: DECAFFEINATED COFFEE (1 CUP)
Framingham Cohort	phv00158003	FFQ: DECAFFEINATED COFFEE (1 CUP)
Framingham Cohort	phv00157698	DERIVED FIELD: SERVINGS PER WEEK - DECAFFEINATED COFFEE
Framingham Cohort	phv00157526	FFQ: DECAFFEINATED COFFEE (1 CUP)
Framingham Cohort	phv00157257	DERIVED FIELD:DECAF COFFEE
Framingham Cohort	phv00156893	FFQ: DECAFFEINATED COFFEE
Framingham Cohort	phv00070147	DERIVED FIELD: SERVINGS PER WEEK - DECAFFEINATED COFFEE
Framingham Cohort	phv00068382	FFQ: DECAFFEINATED COFFEE (1 CUP)
Framingham Cohort	phv00002249	INTERIM HISTORY OF DIET: COFFEE (DECAF) CUPS/DAY
Framingham Cohort	phv00003387	DIET:
Framingham Cohort	phv00003841	# CUPS OF DECAF COFFEE PER DAY
Framingham Cohort	phv00004257	# CUPS OF DECAF COFFEE PER DAY
Framingham Cohort	phv00007765	COFFEE-DECAF. PER DAY
Framingham Cohort	phv00008453	CUPS OF DECAF COFFEE A DAY
Framingham Cohort	phv00008846	# CUPS OF DECAF COFFEE PER DAY
Framingham Cohort	phv00009257	COFFEE/DECAFFEINATED - CUPS PER DAY
Framingham Cohort	phv00009760	# CUPS OF DECAFFEINATED COFFEE PER DAY
Framingham Cohort	phv00069980	FFQ: DECAFFEINATED COFFEE (1 CUP)
Framingham Cohort	phv00068554	DERIVED FIELD: SERVINGS PER WEEK - DECAFFEINATED COFFEE
Framingham Cohort	phv00068950	FFQ: DECAFFEINATED COFFEE (1 CUP)
Framingham Cohort	phv00069123	DERIVED FIELD: SERVINGS PER WEEK - DECAFFEINATED COFFEE
Women's Health Initiative	phv00079340	Cups of decaf coffee
Women's Health Initiative	phv00078256	Other decaf coffee
Women's Health Initiative	phv00078255	Decaf coffee/instant or filtered
Women's Health Initiative	phv00077947	Other decaf coffee
Women's Health Initiative	phv00077946	Decaf coffee/instant or filtered
Women's Health Initiative	phv00077543	Past 3 months frequency drank decaf coffee

Mapping for PX050301_Decaf_Tea_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Framingham Cohort	phv00003843	# CUPS OF DECAF TEA PER DAY
Framingham Cohort	phv00004259	# CUPS OF DECAF TEA PER DAY
Framingham Cohort	phv00008455	CUPS OF DECAF TEA A DAY
Framingham Cohort	phv00008847	# CUPS OF CAFFEINATED TEA PER DAY
Framingham Cohort	phv00008848	# CUPS OF DECAF TEA PER DAY
Framingham Cohort	phv00009763	# CUPS DECAFFEINATED TEA PER DAY
Framingham Cohort	phv00070856	CUP OF DECAFFEINATED COFFEE, HERBAL TEA, POSTUM
Framingham Cohort	phv00172592	FFQ: Herbal tea or decaffeinated tea
Framingham Cohort	phv00173047	Derived field: Herbal or decaf tea
Multi-Ethnic Study of Atherosclerosis (MESA) Cohort	phv00218682	FREQ119 : HERBAL TEA
Women's Health Initiative	phv00077545	Past 3 months frequency drank herbal tea

Mapping for PX050301_Decaf_Tea_Quantity

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Multi-Ethnic Study of Atherosclerosis (MESA) Cohort	phv00218683	SERV119 : HERBAL TEA

Mapping for PX050301_Diet_Cola_Caffeine_Free_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Framingham Cohort	phv00068376	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00068548	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA, NO CAFFEINE
Framingham Cohort	phv00068944	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00069117	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA, NO CAFFEINE
Framingham Cohort	phv00069974	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00070141	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA, NO CAFFEINE
Framingham Cohort	phv00156887	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00157251	DERIVED FIELD:LO-CAL COLA, NO CAFFEINE
Framingham Cohort	phv00157520	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00157692	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA, NO CAFFEINE
Framingham Cohort	phv00157997	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00158313	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00158314	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00158495	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA, NO CAFFEINE
Framingham Cohort	phv00162247	FFQ: LOW CALORIE CAFFEINE-FREE COLA
Framingham Cohort	phv00162629	DERIVED FIELD:LO-CAL COLA, NO CAFFEINE

Mapping for PX050301_Diet_Cola_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Framingham Cohort	phv00068375	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00068547	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA
Framingham Cohort	phv00068943	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00069116	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA
Framingham Cohort	phv00069973	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00070140	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA
Framingham Cohort	phv00156886	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00157250	DERIVED FIELD:LO-CAL COLA
Framingham Cohort	phv00157519	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00157691	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA
Framingham Cohort	phv00157996	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00158494	DERIVED FIELD: SERVINGS PER WEEK - LO-CALORIE COLA
Framingham Cohort	phv00162246	FFQ: LOW CALORIE COLA, WITH CAFFEINE
Framingham Cohort	phv00162628	DERIVED FIELD:LO-CAL COLA

Mapping for PX050301_Espresso_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Multi-Ethnic Study of Atherosclerosis (MESA) Cohort	phv00218673	FREQ116 : CAFE LATTE WITH LOW-FAT OR SKIM MILK
Multi-Ethnic Study of Atherosclerosis (MESA) Cohort	phv00218676	FREQ117 : CAFE LATTE WITH WHOLE MILK
Women's Health Initiative	phv00077541	Past 3 months frequency drank espresso or latte

Mapping for PX050301_Green_Tea_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Framingham Cohort	phv00172593	FFQ: Tea with caffeine, including green tea

Mapping for PX050301_Instant_Coffee_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Women's Health Initiative	phv00077540	Past 3 months frequency drank regular instant coffee
Women's Health Initiative	phv00077944	Caffeinated coffee/instant or filtered
Women's Health Initiative	phv00078253	Caffeinated coffee/instant or filtered

Mapping for PX050301_Regular_Cola_Caffeine_Free_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Framingham Cohort	phv00069120	DERIVED FIELD: SERVINGS PER WEEK - COLA, NO CAFFEINE
Framingham Cohort	phv00162632	DERIVED FIELD:COLA, NO CAFFEINE
Framingham Cohort	phv00162250	FFQ: CAFFEINE FREE COKE, PEPSI, COLA WITH SUGAR
Framingham Cohort	phv00158498	DERIVED FIELD: SERVINGS PER WEEK - COLA, NO CAFFEINE
Framingham Cohort	phv00158317	FFQ: CAFFEINATED FREE COKE, PEPSI, COLA W/ SUGAR
Framingham Cohort	phv00158000	FFQ: CAFFEINATED FREE COKE, PEPSI, COLA W/ SUGAR
Framingham Cohort	phv00157695	DERIVED FIELD: SERVINGS PER WEEK - COLA, NO CAFFEINE
Framingham Cohort	phv00157523	FFQ: CAFFEINATED FREE COKE, PEPSI, COLA W/ SUGAR
Framingham Cohort	phv00157254	DERIVED FIELD:COLA, NO CAFFEINE
Framingham Cohort	phv00156890	FFQ: CAFFEINE FREE COKE, PEPSI, COLA WITH SUGAR
Framingham Cohort	phv00070144	DERIVED FIELD: SERVINGS PER WEEK - COLA, NO CAFFEINE
Framingham Cohort	phv00069977	FFQ: CAFFEINE FREE COKE, PEPSI, COLA W/SUGAR
Framingham Cohort	phv00003845	# 12 OZ CUPS OF DECAF COLA PER DAY
Framingham Cohort	phv00068947	FFQ: CAFF FREE COKE, PEPSI, COLA W/SUGAR
Framingham Cohort	phv00068551	DERIVED FIELD: SERVINGS PER WEEK - COLA, NO CAFFEINE
Framingham Cohort	phv00068379	FFQ: CAFFEINATED FREE COKE, PEPSI, COLA W/ SUGAR
Framingham Cohort	phv00009765	# 12-OZ CUPS OF DECAFFEINATED COLA PER DAY
Framingham Cohort	phv00009262	COLA/DECAFFEINATED - CUPS PER DAY (12 OZ.)
Framingham Cohort	phv00008850	# 12 OZ CUPS OF DECAF COLA PER DAY
Framingham Cohort	phv00008457	CANS OF DECAF COLA A DAY (12 OZ UNITS)
Framingham Cohort	phv00005629	COLA/DECAFFEINATED - CUPS PER DAY (12 OZ.)
Framingham Cohort	phv00005023	COLA/DECAFFEINATED -
Framingham Cohort	phv00004672	COLA/DECAFFEINATED - NUMBER PER DAY (12 OZ.) OVER PAST YEAR
Framingham Cohort	phv00004261	# 12 OZ CUPS OF DECAF COLA PER DAY

Mapping for PX050301_Regular_Cola_Frequency

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Atherosclerosis Risk in Communities (ARIC) Cohort	phv00214116	How many cups/glasses of cola/soda (with caffeine) do you drink on a regular day?
Cardiovascular Health Study (CHS) Cohort	phv00198868	27 cans of cola per day
Cardiovascular Health Study (CHS) Cohort	phv00198867	27 glasses of cola per day
Cardiovascular Health Study (CHS) Cohort	phv00197472	How many cups-glasses of cola-soda (with caffeine) do you drink on a regular day?
Framingham Cohort	phv00069976	FFQ: COKE, PEPSI, OTHER COLA W/SUGAR
Framingham Cohort	phv00162631	DERIVED FIELD:COLA
Framingham Cohort	phv00162249	FFQ: COKE, PEPSI, OTHER COLA WITH SUGAR
Framingham Cohort	phv00158497	DERIVED FIELD: SERVINGS PER WEEK - COLA
Framingham Cohort	phv00158316	FFQ: COKE, PEPSI, OTHER COLA W/ SUGAR
Framingham Cohort	phv00157999	FFQ: COKE, PEPSI, OTHER COLA W/ SUGAR
Framingham Cohort	phv00157694	DERIVED FIELD: SERVINGS PER WEEK - COLA
Framingham Cohort	phv00157522	FFQ: COKE, PEPSI, OTHER COLA W/ SUGAR
Framingham Cohort	phv00157253	DERIVED FIELD:COLA
Framingham Cohort	phv00156889	FFQ: COKE, PEPSI, OTHER COLA WITH SUGAR
Framingham Cohort	phv00070143	DERIVED FIELD: SERVINGS PER WEEK - COLA
Framingham Cohort	phv00003844	# 12 OZ CUPS OF CAFFEINATED COLA / DAY
Framingham Cohort	phv00069119	DERIVED FIELD: SERVINGS PER WEEK - COLA
Framingham Cohort	phv00068946	FFQ: COKE, PEPSI, OTHER COLA W/SUGAR
Framingham Cohort	phv00068550	DERIVED FIELD: SERVINGS PER WEEK - COLA
Framingham Cohort	phv00068378	FFQ: COKE, PEPSI, OTHER COLA W/ SUGAR
Framingham Cohort	phv00056782	How many cans of cola or other soda with caffeine do you drink on a typical day?
Framingham Cohort	phv00056781	How many glasses of cola or other soda with caffeine do you drink on a typical day?
Framingham Cohort	phv00055313	How many cups/glasses of cola/soda (with caffeine) do you drink on a regular day?
Framingham Cohort	phv00009764	# 12-OZ CUPS OF CAFFEINATED COLA PER DAY
Framingham Cohort	phv00009261	COLA/CAFFEINATED - CUPS PER DAY (12 OZ.)
Framingham Cohort	phv00008849	# 12 OZ CUPS OF CAFFEINATED COLA/DAY
Framingham Cohort	phv00008456	CANS OF REGULAR COLA A DAY (12 OZ CANS)
Framingham Cohort	phv00005628	COLA/CAFFEINATED - CUPS PER DAY (12 OZ.)
Framingham Cohort	phv00005022	COLA/CAFFEINATED -
Framingham Cohort	phv00004671	COLA/CAFFEINATED - NUMBER PER DAY (12 OZ.) OVER PAST YEAR
Framingham Cohort	phv00004260	# 12 OZ CUPS OF CAFFEINATED COLA / DAY
The Genomics and Randomized Trials Network (GARNET) Vitamin Intervention Stroke Prevention (VISP) trial	phv00168226	How often do you consume Coke, Pepsi, other cola with sugar, or another carbonated beverage with sugar; 1 glass, bottle, can?

Protocol - Caffeine Intake

Related Protocols:

Essential Protocols:

Studies Using This Protocol:

Description

Specific Instructions

Availability

Protocol

Personnel and Training Required

Equipment Needs

Requirements

Mode of Administration

Lifestage

Participants

Selection Rationale

Language

Standards

Derived Variables

Process and Review

Protocol Name from Source

Source

General References

Protocol ID

Variables

Measure Name

Release Date

Definition

Purpose

Keywords

Measure Protocols

Publications