Table 1.
Socio-demographic and injury-related characteristics of TBI patients admitted in Amhara Region, comprehensive specialized hospitals, 2022 (n = 544)
| Variables | Category | Total (%) | Death (%) | Censored (%) | PDO | Incidence density |
|---|---|---|---|---|---|---|
| Age | 18–40 years | 393(72.2) | 33(8.4) | 360(91.6) | 5103 | 0.0065 |
| 41–64 years | 124(22.8) | 32(25.81) | 92(74.19) | 1283 | 0.025 | |
| >=65 years | 27(4.96) | 16(59.26) | 11(40.74) | 178 | 0.089 | |
| Sex | Male | 466(85.6) | 71(15.24) | 395(84.76) | 5949 | 0.012 |
| Female | 78(14.4) | 10(12.82) | 68(87.18) | 615 | 0.016 | |
| Residence | Urban | 171(34.3) | 20(11.7) | 151(88.3) | 2429 | 0.008 |
| Rural | 373(65.7) | 61(16.31) | 312(83.65) | 4135 | 0.015 | |
| Mechanism of injury | RTA | 138(25.3) | 41(29.71) | 97(70.29) | 1464 | 0.028 |
| Assault | 327(60.1) | 22(6.73) | 305(93.27) | 4060 | 0.005 | |
| Fall | 75(13.8) | 17(22.67) | 58(77.33) | 851 | 0.019 | |
| Other* | 4(0.74) | 1(25) | 3(75) | 189 | 0.005 | |
| Type of head injury | Blunt | 131(24.1) | 18(13.74) | 113(86.26) | 1083 | 0.016 |
| Penetrating | 413(75.9) | 63(15.25) | 350(84.75) | 5481 | 0.011 | |
| Presence of coexisting trauma | Yes | 164(30.2) | 52(31.71) | 112(68.29) | 2122 | 0.025 |
| No | 380(69.8) | 29(7.63) | 351(92.37) | 4442 | 0.006 | |
| Type of coexisting trauma(n = 164) | Maxillofacial | 66(40.2) | 17(25.76) | 49(74.24) | 898 | 0.019 |
| Chest injury | 32(19.5) | 15(46.88) | 17(53.13) | 564 | 0.026 | |
| Abdo. injury | 5(3.1) | 0 | 5(100) | 34 | 0 | |
| Pelvic injury | 10(6.1) | 1(10) | 9(90) | 105 | 0.0095 | |
| Poly-trauma | 51(31.1) | 19(37.25) | 32(62.75) | 521 | 0.036 | |
| Aspiration pneumonia | Yes | 95(17.5) | 53(55.79) | 42(44.21) | 1411 | 0.037 |
| No | 449(82.5) | 28(6. 24) | 421(93.76) | 5153 | 0.005 |
Note: RTA = road traffic accidents; PDO: person, day, observation; *burn, animal bite