Table 3 Demographics of matched pairs (1:2) in the study population
Matched pairs (1:2) | |||
|---|---|---|---|
Ultra-Early | Matched Early | P value | |
N | 52,374 | 104,748 | |
Age stratification, in years old, n (%) | |||
18–39 | 63 (0.1) | 153 (0.1) | 0.057 |
40–49 | 341 (0.7) | 790 (0.8) | |
50–59 | 1866 (3.6) | 4189 (4.0) | |
60–69 | 5413 (10.3) | 11,715 (11.2) | |
70–79 | 14,109 (26.9) | 27,602 (26.4) | |
80–89 | 25,740 (49.1) | 50,088 (47.8) | |
> = 90 | 4842 (9.2) | 10,211 (9.7) | |
Gender, n (%) | |||
Male | 13,474 (25.7) | 27,378 (26.1) | 0.185 |
Female | 38,886 (74.2) | 77,347 (73.8) | |
Missing | 14 (0.0) | 23 (0.0) | |
Race, n (%) | |||
White | 41,289 (78.8) | 82,198 (78.5) | 0.160 |
Non-white | 4535 (8.7) | 10,288 (9.8) | |
Missing | 6550 (12.5) | 12,262 (11.7) | |
Insurance, n (%) | |||
Medicare | 45,586 (87.0) | 90,540 (86.4) | 0.085 |
Medicaid | 793 (1.5) | 1783 (1.7) | |
Private | 4625 (8.8) | 9614 (9.2) | |
Self-pay | 469 (0.9) | 942 (0.9) | |
No charge | 41 (0.1) | 86 (0.1) | |
Other | 783 (1.5) | 1620 (1.5) | |
Missing | 77 (0.1) | 163 (0.2) | |
Charlson Comorbidity Score, n (%) | |||
0 | 19,491 (37.2) | 38,975 (37.2) | 0.085 |
1 | 16,874 (32.2) | 33,203 (31.7) | |
2 | 6889 (13.2) | 13,917 (13.3) | |
> = 3 | 8713 (16.6) | 17,755 (17.0) | |
Missing | 407 (0.8) | 898 (0.9) | |
Weekend admission, n (%) | |||
No | 39,255 (75.0) | 76,686 (73.2) | 0.074 |
Yes | 13,119 25.0) | 28,062 (26.8) | |
Elective admission, n (%) | |||
No | 50,068 (95.6) | 100,136 (95.6) | 1 |
Yes | 2204 (4.2) | 4408 (4.2) | |
Missing | 102 (0.2) | 204 (0.2) | |