Diet History Questionnaire II: Frequency Formats

These are the frequency formats defined in the codebooks for the NCI versions of the DHQ. You may modify or add formats by editing the Questionnaire Data Dictionary.

Frequency Format #1:
(Beverages other than coffee/tea)
0 = 1 time per month or less
1 = 2-3 times per month
2 = 1-2 times per week
3 = 3-4 times per week
4 = 5-6 times per week
5 = 1 time per day
6 = 2-3 times per day
7 = 4-5 times per day
8 = 6 or more times per day
Missing
Error

Frequency Format #2:
(Foods other than question 39 on DHQ-1)
0 = 1-6 times per year (or per winter, summer, season)
1 = 7-11 times per year (or per winter, summer, season)
2 = 1 time per month
3 = 2-3 times per month
4 = 1 time per week
5 = 2 times per week
6 = 3-4 times per week
7 = 5-6 times per week
8 = 1 time per day
9 = 2 or more times per day
Missing
Error

Frequency Format #3:
(Question 39 on DHQ-1, fat added after cooking or at table)
0 = 1-6 times per year
1 = 7-11 times per year
2 = 1 time per month
3 = 2-3 times per month
4 = 1-2 times per week
5 = 3-4 times per week
6 = 5-6 times per week
7 = 1 time per day
8 = 2 times per day
9 = 3 or more times per day
Missing
Error

Frequency Format #4:
(Coffee, iced & hot tea, additives to these)
0 = Less than 1 cup per month
1 = 1-3 cups per month
2 = 1 cup per week
3 = 2-4 cups per week
4 = 5-6 cups per week
5 = 1 cup per day
6 = 2-3 cups per day
7 = 4-5 cups per day
8 = 6 or more cups per day
Missing
Error

Frequency Format #5:
(Supplements)
0 = Less than 1 day per month
1 = 1-3 days per month
2 = 1-3 days per week
3 = 4-6 days per week
4 = Every day
Missing
Error

Frequency Format #6:
(Summary questions for vegetables, fruits)
0 = Less than 1 per week
1 = 1-2 per week
2 = 3-4 per week
3 = 5-6 per week
4 = 1 per day
5 = 2 per day
6 = 3 per day
7 = 4 per day
8 = 5 or more per day
Missing
Error