Univariable and multivariable logistic regression analyses of factors associated with hospitalisation among all study population (n=725)
| Crude OR (95% CI) | P value | Adjusted OR (95% CI) | P value | |
| RSV infection | 2.751 (1.721 to 4.398) | <0.001 | 2.035 (1.167 to 3.546) | 0.012 |
| Male gender | 0.929 (0.676 to 1.277) | 0.650 | ||
| Age (years) | 1.032 (1.023 to 1.042) | <0.001 | 1.021 (1.007 to 1.035) | 0.003 |
| Obesity | 1.419 (0.892 to 2.257) | 0.140 | ||
| Underweight | 1.233 (0.475 to 3.200) | 0.667 | ||
| Smoking | 1.995 (1.189 to 3.346) | 0.009 | 2.621 (1.502 to 4.573) | 0.001 |
| Number of underlying conditions | 1.611 (1.418 to 1.830) | <0.001 | 1.433 (1.210 to 1.696) | <0.001 |
| Supported housing | 1.546 (1.069 to 2.238) | 0.021 | ||
| Hypertension | 2.864 (2.047 to 4.007) | <0.001 | ||
| Ischaemic heart disease | 2.445 (1.641 to 3.644) | <0.001 | ||
| Heart failure | 3.342 (1.738 to 6.425) | <0.001 | ||
| Cerebrovascular disease | 2.502 (1.449 to 4.317) | 0.001 | ||
| COPD | 3.190 (1.609 to 6.325) | 0.001 | ||
| Asthma | 1.323 (0.901 to 1.942) | 0.153 | ||
| Solid malignancy | 1.891 (0.960 to 3.725) | 0.065 | ||
| Haematological malignancy | 0.806 (0.337 to 1.929) | 0.628 | ||
| Diabetes | 2.310 (1.481 to 3.602) | <0.001 | ||
| Chronic kidney disease | 1.434 (0.754 to 2.729) | 0.272 | ||
| Dementia | 1.205 (0.739 to 1.964) | 0.455 | ||
| Immunosuppressive medication | 0.814 (0.492 to 1.346) | 0.422 |
The HL confirmed the goodness of fit for the multivariable model (p=0.138). In categorical variables, men were compared with women, obese (BMI ≥30 kg/m2) and underweight (BMI <18.5 kg/m2) patients with patients with BMI greater than or equal to 18.5–29.9 kg/m2, smokers with non-smokers, patients living in supported housing with patients living independently. The patients with certain underlying condition were compared with those without the underlying condition in question.
BMI, body mass index; COPD, chronic obstructive pulmonary disease; HL, Hosmer-Lemeshow; RSV, respiratory syncytial virus.