Table 4 Demographics of matched pairs (1:1) in the study population
Matched pairs (1:1) | |||
|---|---|---|---|
Ultra-Early | Matched Delayed | P value | |
N | 31,418 | 31,418 | |
Age stratification, in years old, n (%) | |||
18–39 | 79 (0.3) | 88 (0.3) | 0.082 |
40–49 | 249 (0.8) | 295 (0.9) | |
50–59 | 1211 (3.9) | 1322 (4.2) | |
60–69 | 3205 (10.2) | 3339 (10.6) | |
70–79 | 8768 (27.9) | 8628 (27.5) | |
80–89 | 15,214 (48.4) | 15,081 (48.0) | |
> = 90 | 2692 (8.6) | 2665 (8.5) | |
Gender, n (%) | |||
Male | 10,257 (32.6) | 10,384 (33.1) | 0.559 |
Female | 21,159 (67.3) | 21,032 (66.9) | |
Missing | 2 (0.0) | 2 (0.0) | |
Race, n (%) | |||
White | 24,602 (78.3) | 24,343 (77.5) | 0.214 |
Non-white | 3750 (11.9) | 3985 (12.7) | |
Missing | 3066 (9.8) | 3090 (9.8) | |
Insurance, n (%) | |||
Medicare | 27,640 (88.0) | 27,458 (87.4) | 0.102 |
Medicaid | 685 (2.2) | 760 (2.4) | |
Private | 2313 (7.4) | 2407 (7.7) | |
Self-pay | 331 (1.1) | 302 (1.0) | |
No charge | 34 (0.1) | 34 (0.1) | |
Other | 369 (1.2) | 415 (1.3) | |
Missing | 46 (0.1) | 42 (0.1) | |
Charlson Comorbidity Score, n (%) | |||
0 | 7731 (24.6) | 7928 (25.2) | 0.222 |
1 | 10,057 (32.0) | 9813 (31.2) | |
2 | 5483 (17.5) | 5472 (17.4) | |
> = 3 | 7843 (25.0) | 7896 (25.1) | |
Missing | 304 (1.0) | 309 (1.0) | |
Weekend admission, n (%) | |||
No | 23,695 (75.4) | 22,643 (72.1) | 0.063 |
Yes | 7723 (24.6) | 8775 (27.9) | |
Elective admission, n (%) | |||
No | 29,722 (94.6) | 29,722 (94.6) | 1 |
Yes | 1638 (5.2) | 1638 (5.2) | |
Missing | 58 (0.2) | 58 (0.2) | |