Table 2.
Spearman correlation coefficients derived from the electronic 12-hour dietary recall app versus the food frequency questionnaire for categories of food group consumption and strata: age (years): <25 and ≥25; gender: females and males; and occupation: students and employees. Comparison of the electronic 12-hour dietary recall app versus food frequency questionnaire. Spearman correlation coefficients (95% CI).
| Food groups | Alla | Age (years) | Gender | Occupation | |||
|
|
<25 | ≥25 | Females | Males | Students | Employees | |
| Fruit | 0.80 (0.75-0.84) | 0.82 (0.73-0.88) | 0.79 (0.71-0.85) | 0.76 (0.67-0.83) | 0.85 (0.78-0.90) | 0.84 (0.76-0.89) | 0.77 (0.68-0.83) |
| Vegetables | 0.70 (0.62-0.76) | 0.77 (0.66-0.85) | 0.64 (0.52-0.74) | 0.70 (0.60-0.78) | 0.69 (0.56-0.78) | 0.80 (0.71-0.86) | 0.61 (0.48-0.71) |
| Legumes | 0.48 (0.37-0.58) | 0.47 (0.29-0.63) | 0.51 (0.37-0.63) | 0.51 (0.36-0.63) | 0.46 (0.27-0.61) | 0.50 (0.32-0.64) | 0.49 (0.34-0.62) |
| Chicken/Turkey | 0.58 (0.48-0.67) | 0.49 (0.31-0.64) | 0.63 (0.51-0.73) | 0.58 (0.45-0.69) | 0.60 (0.45-0.72) | 0.53 (0.36-0.66) | 0.62 (0.49-0.72) |
| Fish | 0.53 (0.42-0.62) | 0.62 (0.47-0.74) | 0.48 (0.33-0.60) | 0.52 (0.37-0.64) | 0.56 (0.40-0.69) | 0.65 (0.51-0.76) | 0.44 (0.28-0.58) |
| Red meat | 0.63 (0.53-0.70) | 0.71 (0.58-0.80) | 0.58 (0.45-0.69) | 0.65 (0.53-0.75) | 0.54 (0.37-0.67) | 0.69 (0.56-0.79) | 0.58 (0.44-0.69) |
| Soft drinks | 0.83 (0.78-0.87) | 0.79 (0.69-0.86) | 0.85 (0.79-0.89) | 0.82 (0.75-0.87) | 0.84 (0.77-0.89) | 0.81 (0.73-0.87) | 0.85 (0.78-0.89) |
| Sweets | 0.72 (0.64-0.78) | 0.72 (0.59-0.81) | 0.71 (0.61-0.79) | 0.71 (0.61-0.79) | 0.74 (0.63-0.82) | 0.71 (0.59-0.80) | 0.71 (0.60-0.79) |
| Prepared foods | 0.59 (0.49-0.67) | 0.57 (0.40-0.70) | 0.59 (0.46-0.69) | 0.57 (0.44-0.69) | 0.61 (0.46-0.73) | 0.61 (0.46-0.73) | 0.55 (0.41-0.66) |
| Beer | 0.88 (0.85-0.91) | 0.86 (0.78-0.90) | 0.88 (0.84-0.92) | 0.87 (0.82-0.91) | 0.88 (0.81-0.92) | 0.86 (0.80-0.91) | 0.89 (0.84-0.92) |
| Average | 0.67 (—b) | 0.68 (—) | 0.67 (—) | 0.67 (—) | 0.68 (—) | 0.70 (—) | 0.65 (—) |
aP<.001 for all data.
b—: not applicable.