Table 4.
Risk factors of the cumulative incidence rate (CIR) of COVID-19 in residents of nursing homes (II). Health Departments 2 and 3 of Castellon. March 2020–January 2021.
| Variables (Median Values) | CIR 1 | cRR 2,3 95% CI 4 | p-Value | aRR 5 95% CI | p-Value |
|---|---|---|---|---|---|
| CIR municipalities 6,7 > 2820 per 100.000 | 3.7% | 1.01 (1.00–1.02) | 0.000 | 1.01 (0.99–1.02) | 0.341 |
| ≤2820 per 100.000 | 26.8% | 1.00 | 1.00 | ||
| CIR staff 6,8 > 11.7 per 100 | 73.5% | 38.37 (28.21–53.40) | 0.000 | 49.7 (33.0–78.2) | 0.000 |
| ≤11.7 per 100 | 2.1% | 1.00 | 1.00 | ||
| Age of NHs building 6,9 > 16 years | 7.1% | 1.03 (1.02–1.04) | 0.000 | 1.06 (1.04–1.08) | 0.000 |
| ≤16 years | 27.5% | 1.00 | 1.00 | ||
| Occupancy rate 6,9 > 92.9% | 26.1% | 1.47 (1.28–1.70) | 0.000 | 2.09 (1.69–2.58) | 0.000 |
| ≤92.9% | 15.4% | 1.00 | 1.00 | ||
| Residents/staff ratio 6,9 > 1.49 | 52.0% | 1.61 (1.40–1.87) | 0.000 | 1.41 (1.09–1.82) | 0.010 |
| ≤1.49 | 15.0% | 1.00 | 1.00 | ||
| Residents/nursing assistant ratio 6,9 > 3.23 | 52.0% | 1.34 (1.26–1.43) | 0.000 | 1.38 (1.24–1.54) | 0.000 |
| ≤3.23 | 15.8% | 1.00 | 1.00 | ||
| Beds/staff ratio 6,9 > 1.56 | 28.2% | 1.18 (1.05–1.33) | 0.000 | 0.82 (0.65–1.05) | 0.111 |
| ≤1.56 | 6.3% | 1.00 | 1.00 | ||
| Beds/nursing assistant ratio 6,9 > 3.49 | 25.4% | 1.14 (1.09–1.21) | 0.000 | 1.11 (1.01–1.22) | 0.024 |
| ≤3.49 | 15.8% | ||||
| Bathrooms/resident ratio 6,9 > 0.61 | 5.6% | 0.61 (0.44–0.84) | 0.000 | 1.38 (0.84–2.29) | 0.205 |
| ≤0.61 | 26.1% | 1.00 | 1.00 | ||
| Crowding index 6,9 > 1.64 | 39.4% | 1.48 (1.17–1.88) | 0.009 | 2.29 (1.69–3.10) | 0.000 |
| ≤1.64 | 5.6% | 1.00 | 1.00 |
1 CIR = cumulative incidence rate (median). 2 RR = relative risk. 3 c = crude 4 CI = confidence interval. 5 Adjusted. 6 Median of the variable. 7 Adjusted for mean age % women disability NH size ownership. 8 Adjusted for mean age % women disability. 9 Adjusted mean age % women disability ownership NHs size.