Baseline characteristics by sex and country in matched cohorts
| India | USA | |||||
| Females | Males | p Value | Females | Males | p Value‡ | |
| n* | 1356 (18.1) | 6149 (81.9) | <0.05 | 3141 (33.2) | 6307 (66.8) | <0.05 |
| Age* | 31.2±22 | 32.4±18 | 0.64 | 59.6±23 | 48.8±21 | 0.49 |
| ISS* | 11±6 | 12±8 | 0.19 | 8±7 | 8±7 | 0.15 |
| GCS* | 12±3 | 12±3 | 0.12 | 14±1 | 14±1 | 0.02 |
| Blunt injury* | 1349 (95.5) | 5829 (94.8) | <0.05 | 1329 (98.1) | 5842 (92.6) | <0.05 |
| Penetrating injury* | 7 (4.5) | 320 (5.2) | <0.05 | 27 (1.9) | 465 (7.4) | <0.05 |
| Surgery* | 318 (23.4) | 1892 (30.8) | <0.05 | 301 (9.6) | 385 (4.7) | <0.05 |
| Ventilation days* | 0.1±0.8 | 1.5±7.6 | 0.10 | 0.3±2 | 0.6±2.8 | 0.05 |
| ICU days* | 0.2±8.1 | 1.7±4.7 | 0.23 | 0.9±2.7 | 1.3±4.0 | 0.07 |
| Hospital LOS* | 2.9±6.5 | 9.0±14.8 | 0.26 | 4.5±5.1 | 4.8±7.1 | 0.13 |
| In-hospital death* | 382 (28.2) | 1610 (26.2) | 0.13 | 78 (2.5) | 206 (3.3) | 0.04 |
Numbers reported as mean ± SD or count (percentage).
*χ2 test for association between variable and gender and Wilcoxon rank-sum test for difference in means between genders within each country. p Value deemed significant at alpha level<0.05.
GCS, Glasgow Coma Score; ICU, Intensive Care Unit; ISS, Injury Severity Score; LOS, length of stay; RTS, Revised Trauma Score.