Table 1 Risks of death associated with hospitalization months by older and younger cardiovascular inpatients
Month | ≥ 65 years (n = 308,952) | 30 to < 65 years (n = 317,998) | ||||||
|---|---|---|---|---|---|---|---|---|
No. | Death rate (%) | RRs (95% CI)* | P-value | No. | Death rate (%) | RRs (95% CI)* | P-value | |
January | 23,912 | 5.0 | 1.49 (1.36, 1.63) | < 0.01 | 23,244 | 1.3 | 1.06 (0.91, 1.24) | 0.43 |
February | 23,054 | 4.6 | 1.39 (1.27, 1.52) | < 0.01 | 22,266 | 1.3 | 1.02 (0.87, 1.20) | 0.82 |
March | 28,587 | 3.5 | 1.06 (0.96, 1.16) | 0.24 | 30,463 | 1.0 | 0.86 (0.74, 1.01) | 0.07 |
April | 27,745 | 3.9 | 1.18 (1.08, 1.29) | < 0.01 | 27,770 | 1.2 | 1.01 (0.87, 1.18) | 0.91 |
May† | 26,758 | 3.3 | Reference | 27,248 | 1.2 | Reference | ||
June | 24,555 | 3.5 | 1.03 (0.94, 1.14) | 0.51 | 25,270 | 1.1 | 0.92 (0.78, 1.08) | 0.29 |
July | 23,689 | 3.7 | 1.10 (1.00, 1.21) | 0.05 | 25,376 | 1.1 | 0.89 (0.76, 1.04) | 0.15 |
August | 23,695 | 3.7 | 1.09 (0.99, 1.19) | 0.09 | 25,120 | 1.2 | 0.92 (0.78, 1.08) | 0.30 |
September | 24,213 | 4.0 | 1.19 (1.08, 1.30) | < 0.01 | 24,395 | 1.3 | 1.02 (0.88, 1.19) | 0.79 |
October | 28,006 | 4.2 | 1.26 (1.15, 1.37) | < 0.01 | 28,149 | 1.3 | 1.05 (0.90, 1.22) | 0.53 |
November | 28,027 | 4.3 | 1.29 (1.18, 1.41) | < 0.01 | 30,110 | 1.3 | 1.06 (0.91, 1.23) | 0.45 |
December | 26,711 | 4.5 | 1.35 (1.24, 1.48) | < 0.01 | 28,587 | 1.2 | 0.99 (0.85, 1.15) | 0.86 |