Table 3 Factors associated with healthcare-associated infections according to the results of univariate and multivariate logistic regression analysis
Variables | Without HAI | With HAI | Logistic regression model | |||
|---|---|---|---|---|---|---|
Univariate | Multivariate | |||||
n (%) | n (%) | OR (95%CI) | p | OR (95%CI) | p | |
Male sex | 5546 (46.4) | 298 (57.4) | 1.56 (1.31–1.86) | < 0.001 | 1.30 (1.08–1.58) | 0.006 |
Age > 60 years | 7391 (61.8) | 359 (69.2) | 1.18 (1.07–1.29) | 0.001 | – | – |
McCabe (nonfatal vs others) | 9445 (79.0) | 299 (57.6) | 2.76 (2.31–3.31) | < 0.001 | 1.44 (1.17–1.77) | < 0.001 |
Hospital level | ||||||
Secondary | 6268 (52.4) | 208 (40.1) | ref | |||
Tertiary | 5691 (47.6) | 311 (59.9) | 1.65 (1.38–1.97) | < 0.001 | 1.30 (1.06) | 0.10 |
Hospital size | ||||||
Small hosp. | 2816 (23.5) | 108 (20.8) | Ref | – | ||
Large hosp. | 2916 (24.4) | 94 (18.1) | 1.40 (1.17–1.67) | < 0.001 | – | |
Surgery | 3365 (28.1) | 261 (50.3) | 2.58 (2.16–3.08) | < 0.001 | – | – |
ICU | 438 (3.7) | 83 (16.0) | 5.01 (3.89–6.45) | < 0.001 | – | – |
Urinary catheter | 2574 (21.5) | 304 (58.6) | 5.15 (4.31–6.17) | < 0.001 | 1.78 (1.45–2.19) | < 0.001 |
Mechanical ventilation | 182 (1.5) | 86 (16.6) | 12.85 (9.77–16.90) | < 0.001 | 2.38 (1.70–3.30) | < 0.001 |
CVC | 486 (4.1) | 146 (28.1) | 9.24 (7.48–11.42) | < 0.001 | 2.33 (1.79–3.06) | < 0.001 |
Antibiotic therapy | 4778 (40.0) | 507 (97.7) | 0.016 (0.009–0.28) | < 0.001 | 0.23 (0.13–0.41) | < 0.001 |