Table 1. Baseline demographic data.
| Items | VTE (N=382) | non-VTE (N=1238) | -value | p-value |
| Age | 67 (IQR 11) yrs | 65 (IQR 6) yrs | -- | < 0.001 |
| Sex | 1.180 | 0.277 | ||
| Male | 194 | 668 | ||
| Female | 188 | 570 | ||
| Region | 0.074 | 0.785 | ||
| Rural | 261 | 855 | ||
| Urban | 121 | 383 | ||
| VTE history | 135.1 | < 0.001 | ||
| Yes | 79 | 38 | ||
| No | 303 | 1200 | ||
| Hypertension | 15.47 | < 0.001 | ||
| Yes | 122 | 273 | ||
| No | 260 | 965 | ||
| Diabetes mellitus | 3.620 | 0.057 | ||
| Yes | 44 | 103 | ||
| No | 338 | 1135 | ||
| Heart disease | 0.181 | 0.671 | ||
| Yes | 17 | 49 | ||
| No | 365 | 1189 | ||
| Fusion | 4.649 | 0.031 | ||
| Yes | 349 | 1169 | ||
| No | 33 | 69 | ||
| Hospital stay | 15 (IQR 6) days | 14 (IQR 5) days | -- | 0.002 |
VTE, venous thromboembolism; Age and hospital stay are presented as median and interquartile range (IQR).