Table 3 In-hospital mortality of craniotomy patients by characteristics of patients
Variables | Categories | Survival (n = 43,464) | Death (n = 3315) | χ 2 (p) |
|---|---|---|---|---|
n (%) | n (%) | |||
Sex | Male | 21,821(91.6) | 2000(8.4) | 126.40 (<.001) |
Female | 21,643(94.3) | 1315(5.7) | ||
Age (year) | 20–29 | 1441(96.5) | 53(3.6) | 130.98 (<.001) |
30–39 | 2954(95.2) | 149(4.8) | ||
40–49 | 7155(93.9) | 464(6.1) | ||
50–59 | 11,658(93.3) | 841(6.7) | ||
60–69 | 9885(92.7) | 783(7.3) | ||
≥70 | 10,371(91.0) | 1025(9.0) | ||
Type of craniotomy | Major craniotomy (excluding trauma) | 28,540(95.5) | 1353(4.5) | 858.01 (<.001) |
Other craniotomy (excluding trauma) | 6335(87.1) | 941(12.9) | ||
Craniotomy for trauma | 8589(89.4) | 1021(10.6) | ||
Complications and comorbidities | None | 24,527(97.3) | 679(2.7) | 2454.81 (<.001) |
Minor | 11,860(92.0) | 1036(8.0) | ||
Moderate | 7077(81.6) | 1600(18.4) | ||
Admission route | Outpatient department | 26,662(97.7) | 622(2.3) | 2297.39 (<.001) |
Emergency department | 16,802(86.2) | 2693(13.8) | ||
Year of operation | 2014 | 21,760(92.7) | 1712(7.3) | 3.07 (.080) |
2015 | 21,704(93.1) | 1603(6.9) |