Table 2.
Estimated intakes of nutrients of interest from SDQ1 and SDQ2 and test-retest reliability between administrations, CLSA Diet Study (n = 232).
| SDQ1 | SDQ2 | ICC (95% CI) | Weighted Kappa (95% CI) | |||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | |||
| Middle Aged (45–64 years; n = 103) | ||||||
| Dietary fiber (g) | 14.3 | 4.8 | 13.2 | 5.1 | 0.57 (0.42–0.69) | 0.41 (0.30–0.52) |
| Protein (g) | 65.4 | 20.3 | 63.5 | 16.6 | 0.49 (0.32–0.63) | 0.33 (0.20–0.46) |
| Calcium (mg) | 740.4 | 381.6 | 750.0 | 317.8 | 0.53 (0.37–0.66) | 0.43 (0.31–0.55) |
| Fat (g) | 53.5 | 17.3 | 51.2 | 14.4 | 0.49 (0.32–0.63) | 0.36 (0.23–0.49) |
| Vitamin D (ug) | 4.7 | 3.0 | 5.0 | 2.5 | 0.54 (0.38–0.67) | 0.40 (0.28–0.52) |
| Cholesterol (mg) | 221.4 | 84.8 | 208.9 | 74.4 | 0.62 (0.48–0.73) | 0.45 (0.33–0.58) |
| MUFA (mg) | 19.8 | 6.9 | 18.8 | 5.7 | 0.44 (0.26–0.59) | 0.34 (0.21–0.47) |
| PUFA (mg) | 10.3 | 3.5 | 10.0 | 3.3 | 0.52 (0.36–0.66) | 0.43 (0.31–0.54) |
| Saturated fat (mg) | 19.2 | 6.6 | 18.1 | 5.6 | 0.57 (0.41–0.70) | 0.47 (0.42–0.52) |
| Seniors (65+ years; n = 129) | ||||||
| Dietary fiber (g) | 15.5 | 5.0 | 15.2 | 5.1 | 0.55 (0.41–0.66) | 0.34 (0.23–0.45) |
| Protein (g) | 65.7 | 17.2 | 67.0 | 17.4 | 0.57 (0.44–0.68) | 0.38 (0.27–0.48) |
| Calcium (mg) | 758.6 | 315.7 | 845.4 | 361.0 | 0.57 (0.42–0.68) | 0.37 (0.25–0.49) |
| Fat (g) | 53.2 | 16.4 | 54.6 | 17.8 | 0.53 (0.39–0.65) | 0.36 (0.26–0.47) |
| Vitamin D (ug) | 5.1 | 2.6 | 5.8 | 2.7 | 0.60 (0.46–0.70) | 0.40 (0.29–0.51) |
| Cholesterol (mg) | 213.6 | 74.0 | 220.8 | 81.7 | 0.59 (0.46–0.70) | 0.42 (0.31–0.53) |
| MUFA (mg) | 19.6 | 6.5 | 19.8 | 7.1 | 0.53 (0.39–0.65) | 0.38 (0.27–0.48) |
| PUFA (mg) | 10.4 | 3.6 | 10.4 | 3.4 | 0.51 (0.37–0.63) | 0.28 (0.16–0.40) |
| Saturated fat (mg) | 17.3 | 6.0 | 19.3 | 7.0 | 0.54 (0.38–0.66) | 0.35 (0.29–0.40) |
SDQ1, Short Diet Questionnaire 1; SDQ2, Short Diet Questionnaire 2; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids.