Table 2.
Baseline Diet Quality Scores and Change in Waist Circumference Over Three Years: Results from the Women’s Health Initiative Observational Study, n=67,175
| Mean Difference in Change in Waist Circumference, Centimeters (95% Confidence Interval) | |||||
|---|---|---|---|---|---|
| Baseline diet quality score | Median score (Min – Max) |
Age and baseline waist-adjusted1 | Lifestyle-adjusted2 | Weight change-adjusted2 | |
| AHEI-2010 | Quartile 1 | 38 (16 – 43) | 0.60 (0.45, 0.74) | 0.26 (0.11, 0.41) | 0.45 (0.32, 0.58) |
| 2 | 47 (43 – 51) | 0.42 (0.29, 0.56) | 0.23 (0.09, 0.38) | 0.29 (0.17, 0.42) | |
| 3 | 55 (51 – 59) | 0.18 (0.04, 0.32) | 0.09 (−0.05, 0.23) | 0.11 (−0.01, 0.24) | |
| 4 (higher quality) | 64 (59 – 93) | REF. | REF. | REF. | |
| Per 10% higher baseline score | −0.25 (−0.30, −0.20) | −0.13 (−0.18, −0.07) | −0.20 (−0.24, −0.15) | ||
| DASH | Quartile 1 | 18 (8 – 20) | 0.58 (0.43, 0.72) | 0.24 (0.09, 0.39) | 0.48 (0.34, 0.62) |
| 2 | 23 (21 – 24) | 0.34 (0.20, 0.48) | 0.19 (0.05, 0.33) | 0.26 (0.14, 0.38) | |
| 3 | 26 (25 – 27) | 0.15 (0.01, 0.30) | 0.08 (−0.06, 0.23) | 0.10 (−0.03, 0.23) | |
| 4 (higher quality) | 30 (28 – 38) | REF. | REF. | REF. | |
| Per 10% higher baseline score | −0.17 (−0.20, −0.14) | −0.08 (−0.12, −0.05) | −0.14 (−0.18, −0.11) | ||
| HEI-2010 | Quartile 1 | 54 (20 – 61) | 0.56 (0.42, 0.70) | 0.20 (0.05, 0.35) | 0.48 (0.34, 0.61) |
| 2 | 65 (61 – 68) | 0.33 (0.19, 0.46) | 0.18 (0.04, 0.32) | 0.27 (0.15, 0.40) | |
| 3 | 71 (68 – 75) | 0.14 (0.00, 0.27) | 0.08 (−0.06, 0.21) | 0.15 (0.02, 0.27) | |
| 4 (higher quality) | 79 (75 – 95) | REF. | REF. | REF. | |
| Per 10% higher baseline score | −0.21 (−0.26, −0.17) | −0.08 (−0.13, −0.03) | −0.18 (−0.22, −0.13) | ||
| aMED | Quartile 1 | 2 (0 – 2) | 0.49 (0.34, 0.64) | 0.31 (0.15, 0.47) | 0.48 (0.34, 0.62) |
| 2 | 4 (3 – 4) | 0.40 (0.27, 0.52) | 0.30 (0.16, 0.43) | 0.33 (0.21, 0.44) | |
| 3 | 5 (5 – 5) | 0.20 (0.05, 0.35) | 0.16 (0.01, 0.31) | 0.20 (0.07, 0.34) | |
| 4 (higher quality) | 6 (6 – 9) | REF. | REF. | REF. | |
| Per 10% higher baseline score | −0.11 (−0.13, −0.08) | −0.07 (−0.10, −0.04) | −0.10 (−0.12, −0.07) | ||
1
Models adjust for age and waist circumference at enrollment.
2
Models additionally adjust for education, race/ethnicity, smoking status, family history of diabetes, HRT status, total energy intake, and physical activity and 3-year change in weight.
AHEI = Alternate Healthy Eating Index; DASH = Dietary Approaches to Stopping Hypertension; HEI = Healthy Eating Index; aMED = Alternate Mediterranean Diet; REF = Reference Value