Table 2 Chi-square test of characteristics of unintentional injury deaths
Variables | Gender | Areas | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Male | Percentage | Female | Percentage | M:F | Rural | Percentage | Urban | Percentage | R:U | |
Year of death | ||||||||||
2013 | 920 | 17.6% | 625 | 18.3% | 1.47:1 | 989 | 18.4% | 556 | 17.1% | 1.78:1 |
2014 | 828 | 15.9% | 564 | 16.5% | 1.47:1 | 929 | 17.3% | 463 | 14.3% | 2.01:1 |
2015 | 733 | 14.0% | 496 | 14.5% | 1.48:1 | 843 | 15.7% | 386 | 11.9% | 2.18:1 |
2016 | 806 | 15.4% | 468 | 13.7% | 1.72:1 | 847 | 15.7% | 427 | 13.1% | 1.98:1 |
2017 | 704 | 13.5% | 474 | 13.9% | 1.49:1 | 708 | 13.2% | 470 | 14.5% | 1.51:1 |
2018 | 635 | 12.2% | 396 | 11.6% | 1.60:1 | 559 | 10.4% | 472 | 14.5% | 1.18:1 |
2019 | 595 | 11.4% | 386 | 11.3% | 1.54:1 | 506 | 9.4% | 475 | 14.6% | 1.07:1 |
χ2 = 6.436 | P = 0.376 | χ2 = 122.961 | P < 0.001* | |||||||
Season of death | ||||||||||
Spring | 1300 | 24.9% | 820 | 24.1% | 1.59:1 | 1357 | 25.2% | 763 | 23.5% | 1.78:1 |
Summer | 1226 | 23.5% | 835 | 24.5% | 1.47:1 | 1271 | 23.6% | 790 | 24.3% | 1.61:1 |
Autumn | 1195 | 22.9% | 741 | 21.7% | 1.61:1 | 1184 | 22.0% | 752 | 23.1% | 1.57:1 |
Winter | 1500 | 28.7% | 1013 | 29.7% | 1.48:1 | 1569 | 29.2% | 944 | 29.1% | 1.66:1 |
χ2 = 3.392 | P = 0.335 | χ2 = 4.076 | P = 0.253 | |||||||
Age of death | ||||||||||
[0,1) | 1629 | 31.2% | 1224 | 35.9% | 1.33:1 | 1773 | 32.9% | 1080 | 33.2% | 1.64:1 |
[1,2) | 1130 | 21.6% | 762 | 22.4% | 1.48:1 | 1192 | 22.2% | 700 | 21.5% | 1.70:1 |
[2,3) | 1135 | 21.7% | 693 | 20.3% | 1.64:1 | 1123 | 20.9% | 705 | 21.7% | 1.59:1 |
[3,4) | 771 | 14.8% | 424 | 12.4% | 1.82:1 | 756 | 14.0% | 439 | 13.5% | 1.72:1 |
[4,5) | 556 | 10.6% | 306 | 9.0% | 1.82:1 | 537 | 10.0% | 325 | 10.0% | 1.65:1 |
χ2 = 30.078 | P < 0.001* | χ2 = 1.474 | P = 0.831 | |||||||
Causes of death | ||||||||||
Accidental fall | 417 | 8.0% | 258 | 7.6% | 1.62:1 | 374 | 7.0% | 301 | 9.3% | 1.24:1 |
Accidental poisoning | 129 | 2.5% | 99 | 2.9% | 1.30:1 | 145 | 2.7% | 83 | 2.6% | 1.75:1 |
Accidental suffocation | 1643 | 31.5% | 1176 | 34.5% | 1.40:1 | 1745 | 32.4% | 1074 | 33.1% | 1.62:1 |
Traffic accident | 752 | 14.4% | 586 | 17.2% | 1.28:1 | 783 | 14.6% | 555 | 17.1% | 1.41:1 |
Accidental drowning | 1898 | 36.4% | 1027 | 30.1% | 1.85:1 | 1890 | 35.1% | 1035 | 31.9% | 1.83:1 |
Others | 382 | 7.3% | 263 | 7.7% | 1.45:1 | 444 | 8.3% | 201 | 6.2% | 2.21:1 |
χ2 = 42.077 | P < 0.001* | χ2 = 40.571 | P < 0.001* | |||||||
Places of deaths | ||||||||||
Inside the house | 2432 | 46.6% | 1591 | 46.7% | 1.53:1 | 2618 | 48.7% | 1405 | 43.2% | 1.86:1 |
In the hospital | 1231 | 23.6% | 836 | 24.5% | 1.47:1 | 1167 | 21.7% | 900 | 27.7% | 1.30:1 |
Others | 1558 | 29.8% | 982 | 28.8% | 1.59:1 | 1596 | 29.7% | 944 | 29.1% | 1.69:1 |
χ2 = 1.524 | P = 0.467 | χ2 = 43.550 | P < 0.001* | |||||||
Sum | 5221 | 60.5% | 3409 | 39.5% | 5381 | 62.4% | 3249 | 37.6% | ||
Variables | Ethnics | Sum | |||||||
|---|---|---|---|---|---|---|---|---|---|
Tibetan | Percentage | Yi | Percentage | Han | Percentage | T: Y: H | |||
Year of death | |||||||||
2013 | 33 | 14.5% | 72 | 12.3% | 1440 | 18.4% | 0.02: 0.05:1 | 1545 | 17.9% |
2014 | 34 | 14.9% | 55 | 9.4% | 1303 | 16.7% | 0.03: 0.04:1 | 1392 | 16.1% |
2015 | 31 | 13.6% | 71 | 12.1% | 1127 | 14.4% | 0.03: 0.06:1 | 1229 | 14.2% |
2016 | 23 | 10.1% | 110 | 18.8% | 1141 | 14.6% | 0.02: 0.10:1 | 1274 | 14.8% |
2017 | 33 | 14.5% | 100 | 17.1% | 1045 | 13.4% | 0.03: 0.10:1 | 1178 | 13.7% |
2018 | 31 | 13.6% | 92 | 15.7% | 908 | 11.6% | 0.03: 0.10:1 | 1031 | 11.9% |
2019 | 43 | 18.9% | 86 | 14.7% | 852 | 10.9% | 0.05: 0.10:1 | 981 | 11.4% |
χ2 = 75.261 | P < 0.001* | ||||||||
Season of death | |||||||||
Spring | 60 | 26.3% | 153 | 26.1% | 1907 | 24.4% | 0.03: 0.08:1 | 2120 | 24.6% |
Summer | 74 | 32.5% | 165 | 28.2% | 1822 | 23.3% | 0.04: 0.09:1 | 2061 | 23.9% |
Autumn | 45 | 19.7% | 136 | 23.2% | 1755 | 22.5% | 0.03: 0.08:1 | 1936 | 22.4% |
Winter | 49 | 21.5% | 132 | 22.5% | 2332 | 29.8% | 0.02: 0.06:1 | 2513 | 29.1% |
χ2 = 29.093 | P < 0.001* | ||||||||
Age of death | |||||||||
[0,1) | 94 | 41.2% | 252 | 43.0% | 2507 | 32.1% | 0.04: 0.10:1 | 2853 | 33.1% |
[1,2) | 40 | 17.5% | 96 | 16.4% | 1756 | 22.5% | 0.02: 0.05:1 | 1892 | 21.9% |
[2,3) | 47 | 20.6% | 90 | 15.4% | 1691 | 21.6% | 0.03: 0.05:1 | 1828 | 21.2% |
[3,4) | 26 | 11.4% | 78 | 13.3% | 1091 | 14.0% | 0.02: 0.07:1 | 1195 | 13.8% |
[4,5) | 21 | 9.2% | 70 | 11.9% | 771 | 9.9% | 0.03: 0.09:1 | 862 | 10.0% |
χ2 = 49.529 | P < 0.001* | ||||||||
Causes of death | |||||||||
Accidental fall | 24 | 10.5% | 45 | 7.7% | 606 | 7.8% | 0.04: 0.07:1 | 675 | 7.8% |
Accidental poisoning | 10 | 4.4% | 18 | 3.1% | 200 | 2.6% | 0.05: 0.09:1 | 228 | 2.6% |
Accidental suffocation | 92 | 40.4% | 214 | 36.5% | 2513 | 32.2% | 0.04: 0.09:1 | 2819 | 32.7% |
Traffic accident | 35 | 15.4% | 92 | 15.7% | 1211 | 15.5% | 0.03: 0.08:1 | 1338 | 15.5% |
Accidental drowning | 38 | 16.7% | 116 | 19.8% | 2771 | 35.5% | 0.01: 0.04:1 | 2925 | 33.9% |
Others | 29 | 12.7% | 101 | 17.2% | 515 | 6.6% | 0.06: 0.20:1 | 645 | 7.5% |
χ2 = 164.098 | P < 0.001* | ||||||||
Places of deaths | |||||||||
Inside the house | 117 | 51.3% | 326 | 55.6% | 3580 | 45.8% | 0.03: 0.09:1 | 4023 | 46.6% |
In the hospital | 40 | 17.5% | 95 | 16.2% | 1932 | 24.7% | 0.02: 0.05:1 | 2067 | 24.0% |
Others | 71 | 31.1% | 165 | 28.2% | 2304 | 29.5% | 0.03: 0.07:1 | 2540 | 29.4% |
χ2 = 33.445 | P < 0.001* | ||||||||
Sum | 228 | 2.6% | 586 | 6.8% | 7816 | 90.6% | 8630 | ||