Univariable and multivariable Cox regression: association between patient characteristics and time until discharge
| Covariate | Univariable Cox regression | Multivariable Cox regression | ||
| HR (95% CI) | P value | HR (95% CI) | P value | |
| Male gender | 0.76 (0.48 to 1.22) | 0.25 | 0.86 (0.45 to 1.61) | 0.63 |
| Age (years) | 0.99 (0.97 to 1.01) | 0.48 | 0.99 (0.97 to 1.01) | 0.68 |
| Metabolic syndrome | 0.98 (0.60 to 1.16) | 0.93 | 1.22 (0.69 to 2.15) | 0.50 |
| Use of antihypertensives* | 1.32 (0.80 to 2.22) | 0.23 | – | – |
| Hypertriglyceridemia* | 1.16 (0.71 to 1.89) | 0.55 | – | – |
| Low HDL-C* | 0.80 (0.40 to 1.61) | 0.53 | – | – |
| Hyperglycaemic* | 0.87 (0.52 to 1.45) | 0.59 | – | – |
| Abdominal adiposity* | 0.77 (0.47 to 1.27) | 0.30 | – | – |
| Waist–hip ratio | 0.98 (0.95 to 0.99) | 0.04 | 0.98 (0.95 to 1.02) | 0.29 |
| BMI | 0.97 (0.93 to 1.01) | 0.12 | 0.97 (0.92 to 1.01) | 0.12 |
HR <1 related to prolonged length of stay, HR >1 shortened length of stay. −2Log Likelihood 499.14, χ2=7.24, p=0.203. Statistically significant p-values are bold.
*Metabolic syndrome criterion. Cut-off values: high triglycerides (>1.7 mmol/L), low HDL-C (<1 mmol/L in male, <1.3 mmol/L in female), hyperglycaemia ≥7.8 mmol/L and/or drug treatment for elevated blood glucose, abdominal adiposity (male ≥102 cm, female ≥88 cm).
BMI, body mass index; HDL-C, high-density lipoprotein cholesterol.