Table 10.
BMI group: subgroup analysis of the multivariate logistic regression results for the outcome of mortality based on the timing of hospitalization.
| Variable | Quartile | |||
|---|---|---|---|---|
| First Quartile (3/3–29/3/2020) |
Second Quartile (29/3–8/4/2020) |
Third Quartile (8/4–23/4/2020) |
Last Quartile (23/4–31/10/2020) |
|
| n = 2209 (25.01%) | n = 2208 (25.00%) | n = 2208 (25.00%) | n = 2208 (25.00%) | |
| OR, 95% CI, p-Value | OR, 95% CI, p-Value | OR, 95% CI, p-Value | OR, 95% CI, p-Value | |
| Male | 1.688 (1.361–2.094) p < 0.001 | 1.287 (1.056–1.568) p = 0.012 | 1.388 (1.131–1.703) p = 0.002 | 1.010 (0.741–1.375) p = 0.951 |
| Female | 0.592 (0.478–0.735) p < 0.001 | 0.777 (0.638–0.947) p = 0.012 | 0.720 (0.587–0.884) p = 0.002 | 0.990 (0.727–1.349) p = 0.951 |
| Age < 65 | 0.268 (0.215–0.335) p < 0.001 | 0.321 (0.261–0.394) p < 0.001 | 0.278 (0.222–0.348) p < 0.001 | 0.237 (0.165–0.339) p < 0.001 |
| Age ≥ 65 | 3.728 (2.987–4.654) p < 0.001 | 3.116 (2.536–3.830) p < 0.001 | 3.603 (2.878–4.510) p < 0.001 | 4.228 (2.953–6.053) p < 0.001 |
| BMI < 25 (reference) | * | * | * | * |
| 25 ≤ BMI < 30 | 1.178 (0.900–1.542) p = 0.234 | 1.031 (0.813–1.307) p = 0.800 | 1.113 (0.873–1.421) p = 0.387 | 0.869 (0.594–1.270) p = 0.468 |
| 30 ≤ BMI < 35 | 1.443 (1.071–1.946) p = 0.016 | 1.115 (0.839–1.481) p = 0.455 | 1.339 (1.001–1.791) p = 0.049 | 1.024 (0.659–1.591) p = 0.916 |
| 35 ≤ BMI < 40 | 2.102 (1.443–3.061) p < 0.001 | 1.460 (1.045–2.039) p = 0.027 | 1.536 (1.049–2.249) p = 0.027 | 1.594 (0.920–2.762) p = 0.096 |
| BMI ≥ 40 | 3.148 (2.160–4.588) p < 0.001 | 1.941 (1.319–2.855) p < 0.001 | 1.598 (1.068–2.392) p = 0.023 | 1.339 (0.683–2.628) p = 0.396 |
Notes: (1) N = 8833, (2) BMI in kg/m2, (3) age in years; (4) for this analysis, the total cohort of 8833 patients was divided in four equal quartile cohorts based on the day of admission (1st quartile: 3/3–29/3/2020, 2nd quartile: 29/3–8/4/2020, 3rd quartile: 8/4–23/4/2020, 4th quartile: 23/4–31/10/2020). Abbreviations: BMI = body mass index, OR = odds ratio, CI = confidence interval, kg = kilogram, m = meter, * = reference group.