Table 1 Characteristics of the validation and drop-out groups
From: Validation of a digital food frequency questionnaire for the Northern Sweden Diet Database
Validation group | Drop-out group | |
|---|---|---|
Number | 244 | 430 |
Proportion men/women | 38.9/61.1 | 41.9/58.1 |
Age, years, mean (sd) | 49.8 (8.5) | 50.3 (8.7) |
BMI, mean (sd)1 | 26.1 (4.3) | 27.6 (5.6) |
Never smoker, % | 75.0 | 71.4 |
Education, % with university level | 61.5 | 46.1 |
Physical activity, % ≥twice weekly | 43.8 | 29.1 |
Proportion with “optimal” FFQ2020 (exclusion score 0)2 | 100 | 96.0 |