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Caffeine Questionnaire

0 Shared Subjects

The Caffeine Questionnaire (Supplemental Beverage Questions) is a list of 13 caffeine-containing beverages available to supplement the general Food Frequency Questionnaire on the dietary intake of caffeine. It can also be used independently of the general FFQ. Fred Hutchinson Cancer Research Center. (2004). Caffeine questionnaire. Retrieved from http://sharedresources.fhcrc.org/documents/caffeine-questionnaire Reference: Song YJ, Kristal AR, Wicklund KG, Cushing-Haugen KL, Rossing MA. Coffee, tea, colas, and risk of epithelial ovarian cancer. Cancer Epidemiol Biomarkers Prev 2008; 17(3): 712-6.
Clinical Assessments
Questionnaire
11/06/2020
cafq01
01/28/2021
View Change History
01
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported
timepoint_label String 50 Recommended Timepoint/visit label timepoint
phenx_caffeine01 Integer Recommended Over the past 30 days, have you had any caffeinated or 'decaf' drinks such as coffee, energy drinks, tea, or soda? 0; 1; -9 0 = No; 1 = Yes; -9 = missing
phenx_caffeine02 Integer Recommended Over the past 30 days, on an average day, how many caffeinated drinks do you have? 0::100; -7; -9 Number of drinks per day; -7 =N/A; -9 = missing
phenx_caffeine03 Integer Recommended Over the past 30 days, on an average day, what size are these caffeinated drinks? 1::3; -7; -9 1 = Small (<8 oz); 2 = Medium (8-12 oz); 3 = Large (>12oz); -7 = N/A; -9 = missing
cafq01 Integer Recommended How often did you drink the beverage? - Decaffeinated coffee (Instant and brewed) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq02 Integer Recommended Your serving size? - Decaffeinated coffee (Instant and brewed) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq03 Integer Recommended How often did you drink the beverage? - Instant coffee, not decaffeinated (Including flavored types) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq04 Integer Recommended Your serving size? - Instant coffee, not decaffeinated (Including flavored types) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq05 Integer Recommended How often did you drink the beverage? - Brewed coffee, not decaffeinated 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq06 Integer Recommended Your serving size? - Brewed coffee, not decaffeinated 1::3 1 = Small; 2 = Medium; 3 = Large
cafq07 Integer Recommended How often did you drink the beverage? - Decaffeinated espresso and espresso drinks (Latte, Mocha, Americano) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq08 Integer Recommended Your serving size? - Decaffeinated espresso and espresso drinks (Latte, Mocha, Americano) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq09 Integer Recommended How often did you drink the beverage? - Espresso and espresso drinks, not decaffeinated (Latte, Mocha, Americano) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq10 Integer Recommended Your serving size? - Espresso and espresso drinks, not decaffeinated (Latte, Mocha, Americano) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq11 Integer Recommended How often did you drink the beverage? - Herbal or decaffeinated tea (Instant, bottled, and brewed) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq12 Integer Recommended Your serving size? - Herbal or decaffeinated tea (Instant, bottled, and brewed) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq13 Integer Recommended How often did you drink the beverage? - Green tea (Not decaffeinated-instant, bottled, and brewed) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq14 Integer Recommended Your serving size? - Green tea (Not decaffeinated-instant, bottled, and brewed) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq15 Integer Recommended How often did you drink the beverage? - Black tea such as Lipton, or Earl Grey (Not decaffeinated-instant, bottled, and brewed) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq16 Integer Recommended Your serving size? - Black tea such as Lipton, or Earl Grey (Not decaffeinated-instant, bottled, and brewed) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq17 Integer Recommended How often did you drink the beverage? - Jolt, Mountain Dew, Red Bull and other highly caffeinated sodas 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq18 Integer Recommended Your serving size? - Jolt, Mountain Dew, Red Bull and other highly caffeinated sodas 1::3 1 = Small; 2 = Medium; 3 = Large
cafq19 Integer Recommended How often did you drink the beverage? - Regular colas and root beer (With caffeine, not diet) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq20 Integer Recommended Your serving size? - Regular colas and root beer (With caffeine, not diet) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq21 Integer Recommended How often did you drink the beverage? - Diet colas and diet root beer (With caffeine) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq22 Integer Recommended Your serving size? - Diet colas and diet root beer (With caffeine) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq23 Integer Recommended How often did you drink the beverage? - Regular colas and root beer (Caffeine free, not diet) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq24 Integer Recommended Your serving size? - Regular colas and root beer (Caffeine free, not diet) 1::3 1 = Small; 2 = Medium; 3 = Large
cafq25 Integer Recommended How often did you drink the beverage? - Diet colas and diet root beer (Caffeine free) 0::8 0 = Never or less than once per month; 1 = 1 to 3 per month; 2 = 1 per week; 3 = 2 to 4 per week; 4 = 5 to 6 per week; 5 = 1 per day; 6 = 2 to 3 per day; 7 = 4 to 5 per day; 8 = 6 or more per day
cafq26 Integer Recommended Your serving size? - Diet colas and diet root beer (Caffeine free) 1::3 1 = Small; 2 = Medium; 3 = Large
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
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  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
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