Table 2.
Daily intake of constipated subjects and normal participant
| Characteristic | Normal, N = 3907 (78%)a | Constipation, N = 1270 (22%)a | P-valueb |
|---|---|---|---|
| Niacin | < 0.001 | ||
| Q2 (18–27) | 40,507,351 (26%) | 11,510,966 (26%) | |
| Q1 (0–18) | 28,026,902 (18%) | 12,353,301 (28%) | |
| Q3 (27–39) | 40,069,460 (26%) | 10,367,768 (23%) | |
| Q4 (> 39) | 46,134,085 (30%) | 10,488,205 (23%) | |
| Energy | 2024 (1548, 2608) | 1815 (1437, 2305) | < 0.001 |
| Protein | 79 (60, 103) | 71 (55, 91) | < 0.001 |
| Carbohydrate | 245 (187, 311) | 227 (176, 291) | 0.006 |
| Total sugars | 104 (68, 148) | 98 (68, 136) | 0.041 |
| Fiber | 16 (11, 22) | 15 (11, 22) | 0.3 |
| Total fat | 74 (53, 101) | 66 (48, 88) | 0.002 |
| Cholesterol | 240 (155, 368) | 211 (142, 345) | 0.001 |
| Moisture | 3950 (2704, 5752) | 3649 (2602, 5554) | 0.014 |
| Total saturated fatty acids | 24 (16, 34) | 21 (15, 30) | 0.002 |
| Total monounsaturated fatty acids | 26 (19, 36) | 23 (17, 32) | 0.001 |
| Total polyunsaturated fatty acids | 16 (11, 23) | 15 (10, 21) | 0.010 |
| Folic acid | 224 (119, 496) | 192 (94, 469) | 0.015 |
| Vitamin E | 6.9 (4.7, 9.9) | 6.3 (4.3, 9.3) | 0.022 |
| Phosphorus | 1346 (1038, 1759) | 1238 (954, 1585) | 0.001 |
| Sodium | 3406 (2566, 4426) | 3072 (2333, 3925) | < 0.001 |
| Potassium | 2703 (2065, 3445) | 2524 (1885, 3247) | 0.003 |
| Caffeine | 128 (42, 251) | 102 (32, 214) | 0.005 |
an (%); median (IQR)
bChi-squared test with Rao and Scott’s second-order correction; Wilcoxon rank-sum test for complex survey samples