Table 5.
Subgroup analyses for associations between serum selenium and the risk of rehospitalization in patients with heart failure.
| Covariates | Rehospitalization/participants | HR (95% CI) | P* |
|---|---|---|---|
| Sex | 0.395 | ||
| Male | 66/228 | 1.03 (1.00–1.07) | 0.097 |
| Female | 65/183 | 1.00 (0.97–1.04) | 0.882 |
| Age (years) | 0.882 | ||
| < 75 | 95/309 | 1.01 (0.97–1.04) | 0.369 |
| ≥ 75 | 36/102 | 1.03 (0.98- 1.08) | 0.276 |
| BMI (kg/m2) | 0.012 | ||
| < 25 | 46/170 | 0.96 (0.92–1.01) | 0.090 |
| ≥ 25 | 85/241 | 1.04 (1.01–1.08) | 0.009 |
| Smoking status | 0.120 | ||
| No | 107/329 | 1.01 (0.98–1.04) | 0.704 |
| Yes | 24/82 | 1.06 (1.00–1.12) | 0.061 |
| Alcohol drinking | 0.092 | ||
| No | 112/350 | 1.01 (0.98–1.04) | 0.598 |
| Yes | 19/61 | 1.08 (0.99–1.16) | 0.071 |
*Adjusted for age, sex (except in the sex-stratified analysis), body mass index, smoking (except in the smoking-stratified analysis), drinking (except in the alcohol-stratified analysis), hypertension, diabetes, chronic kidney disease, prior history of heart failure, atrial fibrillation and medication.