From: Assessment of dietary intake among pregnant women in a rural area of western China
 |  | Maternal BMI* | Household wealth | |||||
---|---|---|---|---|---|---|---|---|
 |  | <18.5 n = 161 | > = 18.5 n = 1213 | p†| Poorest n = 364 | Middle n = 579 | Richest n = 477 | p‡ |
Energy (kcal) | Median | 2108.7 | 2250.7 | 0.015 | 2200.5 | 2214.5 | 2263.1 | 0.111 |
 | p5, p95¶ | 1288.0, 3176.4 | 1305.4, 3644.6 |  | 1263.4, 3546.8 | 1292.8, 3726.5 | 1366.4, 3603.1 |  |
Protein (g) | Median | 55.7 | 61.3 | 0.002 | 59.2 | 59.7 | 62.3 | 0.151 |
 | p5, p95¶ | 33.0, 91.7 | 33.5, 105.0 |  | 35.2, 101.7 | 33.1, 103.1 | 33.5, 105.75 |  |
Calcium (mg) | Median | 424.1 | 416.8 | 0.539 | 384.1 | 398.9 | 447.4 | <0.001 |
 | p5, p95¶ | 193.5, 781.3 | 189.3, 856.9 |  | 183.9, 825.7 | 180.6, 849.8 | 203.1, 867.7 |  |
Iron (mg) | Median | 20.6 | 22.3 | 0.028 | 21.6 | 21.7 | 22.6 | 0.016 |
 | p5, p95¶ | 12.4, 33.8 | 12.5, 38.6 |  | 12.2, 36.3 | 12.0, 38.4 | 13.2, 38.2 |  |
Zinc (mg) | Median | 7.98 | 8.60 | 0.022 | 8.17 | 8.50 | 8.77 | 0.012 |
 | p5, p95¶ | 4.59, 12.34 | 4.81, 14.72 |  | 4.62, 13.91 | 4.62, 14.70 | 4.90, 14.38 |  |
Riboflavin (mg) | Median | 0.84 | 0.88 | 0.078 | 0.82 | 0.88 | 0.92 | 0.002 |
 | p5, p95¶ | 0.41, 1.42 | 0.47, 1.59 |  | 0.44, 1.55 | 0.44, 1.60 | 0.48, 1.59 |  |
Vitamin C (mg) | Median | 90.0 | 89.8 | 0.715 | 77.4 | 88.0 | 102.1 | <0.001 |
 | p5, p95¶ | 24.4, 220.6 | 22.2, 246.1 |  | 21.2, 228.1 | 18.6, 242.4 | 29.4, 260.52 |  |
Folate (μg) | Median | 236.0 | 247.8 | 0.095 | 228.2 | 240.0 | 268.0 | <0.001 |
 | p5, p95¶ | 104.6, 456.4 | 114.4, 509.2 |  | 116.9, 477.9 | 104.0, 487.2 | 126.8, 519.7 |  |