Table 3. Relative risk and prevalence ratio using the Poisson regression model with robust variance and its respective 95% confidence interval.
| Variables | Relative Risk (RR) | Relative Risk (RR) Adjusted* | ||
|---|---|---|---|---|
| RR (95% IC) | p-value | RR (95% IC) | p-value | |
| Block 1 –Demographic | ||||
| Sex | 0.4394 | 0.5128 | ||
| Women | 1 | - | 1 | - |
| Men | 1.18 (0.78–1.79) | 0.4394 | 1.14 (0.77–1.69) | 0.5128 |
| Age | < 0.0001 | < 00001 | ||
| 60–79 | 1 | - | 1 | - |
| 80–89 | 3.52 (2.00–6.17) | < 0.0001 | 350 (1.99–6.15) | < 0.0001 |
| > 90 | 6.13 (3.45–10.90) | < 0.0001 | 6.11 (3.44–10.87) | < 0.0001 |
| Block 2 –Preoperative | ||||
| Hemoglobin | 0.0334 | |||
| ≤ 10 | 1.85 (1.21–2.81) | 0.0041 | 1.54 (1.03–2.29) | 0.0334 |
| > 10 | 1 | - | 1 | - |
| SAH | 0.0901 | 0.2475 | ||
| No | 1 | - | 1 | - |
| Yes | 1.64 (0.92–2.92) | 0.0901 | 1.39 (0.79–2.45) | 0.2475 |
| DM | 0.1412 | 0.6915 | ||
| No | 1 | - | 1 | - |
| Yes | 1.36 (0.90–2.06) | 0.1412 | 0.92 (0.63–1.36) | 0.6915 |
| Neurological disorders | 0.0267 | 0.5050 | ||
| No | 1 | - | 1 | - |
| Yes | 1.60 (1.06–2.44) | 0.0267 | 1.14 (0.77–1.69) | 0.5050 |
| COPD | < 0.0001 | 0.0002 | ||
| No | 1 | - | 1 | - |
| Yes | 3.04 (1.97–4.69) | < 0.0001 | 2.39 (1.52–3.78) | 0.0002 |
| Surgical risk | < 0.0001 | < 0.0001 | ||
| Low to moderate | 1 | - | 1 | - |
| High | 4.43 (2.84–693) | <0.0001 | 3.18 (2.00–5.06) | < 0.0001 |
| Femur fracture | 0.8222 | 0.1681 | ||
| Intracapsular | 1 | - | 1 | - |
| Extracapsular | 0.95 (0.63–1.44) | 0.8222 | 1.32 (0.89–1.97) | 0.1681 |
| Block 3 –Postoperative | ||||
| Type of surgery | < 0.0001 | 0.0003 | ||
| Non-surgical | 3.47 (2.01–5.99) | < 0.0001 | 2.04 (1.31–3.16) | 0.0003 |
| Osteosynthesis | 1.27 (0.69–2.32) | 0.4431 | 1.03 (0.64–1.64) | 0.9108 |
| Arthroplasty | 1 | - | ||
| Respiratory infection | < 0.0001 | < 0.0001 | ||
| No | 1 | - | 1 | - |
| Yes | 15.75 (9.26–26.77) | < 0.0001 | 7.27 (3.98–3.26) | < 0.0001 |
| Urinary tract infection | < 0.0001 | < 0.0001 | ||
| No | 1 | - | 1 | - |
| Yes | 2.86 (1.93–4.25) | < 0.0001 | 2.04 (1.44–2.89) | < 0.0001 |
| Other infection | 0.0024 | 0.0251 | ||
| No | 1 | - | 1 | - |
| Yes | 2.52 (1.39–4.58) | 0.0024 | 1,98 (1.09–3.62) | 0.0251 |
| PTE | < 0.0001 | 0.0202 | ||
| No | 1 | - | 1 | - |
| Yes | 3.72 (2.42–5.74) | < 0.0001 | 1.98 (1.11–3.52) | 0.0202 |
| Days in ICU | < 0.0001 | 0.1683 | ||
| ≤ 3 | 1 | - | 1 | - |
| > 3 | 3.61 (2.46–5.31) | < 0.0001 | 1.27 (0.90–1.80) | 0.1683 |