Table 2:
Characteristic | No. (%) of patients* | Standardized difference | ||
---|---|---|---|---|
Total n = 7776 |
Pandemic period n = 2490 |
Control period n = 5286 |
||
Demographics | ||||
Age, yr | ||||
18–64 | 7776 (100.0) | 2490 (100.0) | 5286 (100.0) | |
Sex | ||||
Female | 7776 (100.0) | 2490 (100.0) | 5286 (100.0) | |
Rural | ||||
Urban | 7258 (94.2) | 2321 (94.2) | 4937 (94.1) | 0 |
Rural | 450 (5.8) | 142 (5.8) | 308 (5.9) | 0 |
Income quintile | ||||
1 (high) | 1977 (25.5) | 632 (25.4) | 1345 (25.5) | 0 |
2 | 1710 (22.0) | 558 (22.4) | 1152 (21.8) | 0.02 |
3 | 1562 (20.1) | 532 (21.4) | 1030 (19.5) | 0.05 |
4 | 1428 (18.4) | 438 (17.6) | 990 (18.7) | 0.03 |
5 (low) | 1091 (14.0) | 326 (13.1) | 765 (14.5) | 0.04 |
Comorbidities | ||||
ADG score | ||||
Mean ± SD | 9.10 ± 4.03 | 8.77 ± 4.05 | 9.25 ± 4.01 | 0.12 |
Median (IQR) | 9 (6–12) | 9 (6–12) | 9 (7–12) | 0.12 |
Coronary artery disease | 21 (0.3) | 7 (0.3) | 14 (0.3) | 0 |
Chronic obstructive pulmonary disease | 17 (0.2) | 7 (0.3) | 10 (0.2) | 0.02 |
Congestive heart failure | 0 | 0 | 0 | 0 |
Diabetes mellitus | 208 (2.7) | 59 (2.4) | 149 (2.8) | 0.03 |
Hypertension | 228 (2.9) | 58 (2.3) | 170 (3.2) | 0.05 |
Asthma | 1485 (19.1) | 450 (18.1) | 1035 (19.6) | 0.04 |
Cancer | 21 (0.3) | 7 (0.3) | 14 (0.3) | 0 |
Stroke | 7 (0.1) | ≤ 5 | ≤ 10 | 0.03 |
Liver failure | 6 (0.1) | ≤ 5 | ≤ 5 | 0 |
Renal failure | 15 (0.2) | ≤ 5 | ≤ 15 | 0.04 |
ED characteristics | ||||
Weekday ED visit (Monday to Friday) | 6007 (77.3) | 1921 (77.1) | 4086 (77.3) | 0 |
Time of ED visit | ||||
Day (08:00–16:59) | 4868 (62.6) | 1604 (64.4) | 3264 (61.7) | 0.06 |
Evening (17:00–23:59) | 2217 (28.5) | 687 (27.6) | 1530 (28.9) | 0.03 |
Night (00:00–07:59) | 691 (8.9) | 199 (8.0) | 492 (9.3) | 0.05 |
Hospital type | ||||
Community | 5934 (76.3) | 1919 (77.1) | 4015 (76.0) | 0.03 |
Small | 237 (3.0) | 89 (3.6) | 148 (2.8) | 0.04 |
Teaching | 1605 (20.6) | 482 (19.4) | 1123 (21.2) | 0.05 |
Outcomes | ||||
Ambulance arrival | 501 (6.4) | 195 (7.8) | 306 (5.8) | 0.08 |
Hospital admission | 2287 (29.4) | 753 (30.2) | 1534 (29.0) | 0.03 |
Surgery | 1877 (82.1) | 637 (84.6) | 1240 (80.8) | 0.1 |
Hospital admission within 30 d of discharge | 771 (9.9) | 232 (9.3) | 539 (10.2) | 0.03 |
30-d mortality | ≤ 5 (0.0) | – | – | – |
Note: ADG = adjusted diagnostic group, ED = emergency department, IQR = interquartile range, SD = standard deviation.
Unless indicated otherwise. Some cells have been suppressed to prevent back calculation of low cell volumes.