TABLE 3.
Multivariable‐adjusted logistic regression analysis of dietary magnesium intake associated with chronic constipation defined by stool frequency, NHANES 2007–2010
| Magnesium intake (mg) | Cases/participants | ORs (95% CIs) a | |
|---|---|---|---|
| Overall (n = 9,519) | |||
| Quartile 1 | ≤199.50 | 132/2385 | 1.00 (ref.) |
| Quartile 2 | 199.50–264.00 | 77/2381 | 0.71 (0.51–0.99)* |
| Quartile 3 | 264.00–349.50 | 68/2382 | 0.78 (0.46–1.31) |
| Quartile 4 | ≥349.50 | 31/2371 | 0.39 (0.16–0.95)* |
| p for trend | .090 | ||
| Men (n = 4,814) | |||
| Quartile 1 | ≤225.00 | 37/1210 | 1.00 (ref.) |
| Quartile 2 | 225.00–298.00 | 15/1205 | 0.31 (0.11–0.83)* |
| Quartile 3 | 298.00–389.00 | 19/1197 | 0.38 (0.19–0.75)** |
| Quartile 4 | ≥389.00 | 9/1202 | 0.10 (0.04–0.26)** |
| p for trend | <.001 | ||
| Women (n = 4,705) | |||
| Quartile 1 | ≤181.00 | 90/1180 | 1.00 (ref.) |
| Quartile 2 | 181.00–236.00 | 51/1178 | 0.59 (0.37–0.94)* |
| Quartile 3 | 236.00–305.00 | 53/1173 | 0.73 (0.41–1.30) |
| Quartile 4 | ≥305.00 | 34/1174 | 0.53 (0.20–1.42) |
| p for trend | .245 | ||
a
Adjusted for age, gender (sex subgroup analysis excluded), race/ethnicity, levels of education, physical activity, drinking status, smoking status, body mass index, diabetes, hypertension, depression, total energy intake, total daily intakes of fat, fiber, and plain water.
*
p < .05
**
p < .01.