TABLE 2.
Multivariable‐adjusted logistic regression analysis of dietary magnesium intake associated with chronic constipation defined by stool consistency, NHANES 2007–2010
| Magnesium intake (mg) | Cases/participants | ORs (95% CIs) a | |
|---|---|---|---|
| Overall (n = 9,519) | |||
| Quartile 1 | ≤199.50 | 246/2385 | 1.00 (ref.) |
| Quartile 2 | 199.50–264.00 | 192/2381 | 0.96 (0.69–1.32) |
| Quartile 3 | 264.00–349.50 | 152/2382 | 1.03 (0.74–1.43) |
| Quartile 4 | ≥349.50 | 113/2371 | 1.13 (0.78–1.64) |
| p for trend | .500 | ||
| Men (n = 4,814) | |||
| Quartile 1 | ≤225.00 | 86/1210 | 1.00 (ref.) |
| Quartile 2 | 225.00–298.00 | 66/1205 | 0.91 (0.55–1.50) |
| Quartile 3 | 298.00–389.00 | 40/1197 | 0.67 (0.35–1.29) |
| Quartile 4 | ≥389.00 | 47/1202 | 1.36 (0.53–3.50) |
| p for trend | .837 | ||
| Women (n = 4,705) | |||
| Quartile 1 | ≤181.00 | 143/1180 | 1.00 (ref.) |
| Quartile 2 | 181.00–236.00 | 119/1178 | 0.78 (0.52–1.17) |
| Quartile 3 | 236.00–305.00 | 111/1173 | 0.85 (0.53–1.35) |
| Quartile 4 | ≥305.00 | 91/1174 | 0.83 (0.55–1.26) |
| p for trend | .508 | ||
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.