Factors associated with 24-hour mortality
| Alive | Died | Univariate logistic regression OR (95% CI, p value) | Multilevel logistic regression OR (95% CI, p value) | |
|---|---|---|---|---|
| HDI tertile | ||||
| High | 692 (99.7) | 2 (0.3) | – | – |
| Middle | 446 (99.3) | 3 (0.7) | 2.33 (0.38 to 17.72, p=0.356) | 3.71 (0.56 to 24.56, p=0.174) |
| Low | 258 (97.4) | 7 (2.6) | 9.39 (2.25 to 63.28, p=0.005) | 7.08 (1.39 to 36.10, p=0.018) |
| Age | ||||
| Child (>2 years <16 years) | 1104 (99.4) | 7 (0.6) | – | – |
| Infant (>1 month <2 years) | 148 (99.3) | 1 (0.7) | 1.07 (0.06 to 6.05, p=0.953) | 0.16 (0.02 to 1.45, p=0.102) |
| Neonate (≤1 month) | 143 (97.3) | 4 (2.7) | 4.41 (1.14 to 14.79, p=0.019) | 0.74 (0.16 to 3.33, p=0.694) |
| Gender | ||||
| Male | 811 (99.5) | 4 (0.5) | – | – |
| Female | 585 (98.7) | 8 (1.3) | 2.77 (0.87 to 10.43, p=0.097) | 3.47 (0.99 to 12.22, p=0.053) |
| ASA | ||||
| 1 | 975 (99.8) | 2 (0.2) | – | – |
| >1 | 421 (97.7) | 10 (2.3) | 11.58 (3.04 to 75.55, p=0.002) | 5.22 (0.96 to 28.23, p=0.055) |
| Perforated viscus | ||||
| No | 1177 (99.3) | 8 (0.7) | – | – |
| Yes | 209 (98.1) | 4 (1.9) | 2.82 (0.75 to 9.02, p=0.093) | 1.57 (0.40 to 6.21, p=0.520) |
| Primary operation | ||||
| Non-appendicectomy | 475 (97.7) | 11 (2.3) | – | – |
| Appendicectomy | 921 (99.9) | 1 (0.1) | 0.05 (0.00 to 0.24, p=0.003) | 0.07 (0.01 to 0.59, p=0.015) |
n=1398, AIC=120.2, c-statistic=0.922, H and L GOF=χ2=3.438, df=8, p value=0.904.
AIC, Akaike information criterion; ASA, American Society of Anesthesiologists; df, degree of freedom; H and L GOF, Hosmer-Lemeshow Goodness of fit; HDI, Human Development Index.