Variables covariates effects((γi)) SE Wald sig. exp() 95% CI for
exp()
Age at marriage              
15 -0.1484 0.411 0.451 0.83 0.17 1.508 (0.83, 2.71)
16-20 -0.1985 0.55 0.754 0.532 0.06 1.733 (0.73, 4.06)
>20 (R) 0 1          
Weight              
<50 kg 0.3212 -0.892 0.122 53.457 0.003 0.409 (0.23, 0.74)
50kg(R) 0 1          
Height              
<150cm -0.3151 0.875 0.832 1.106 0.012 2.399 (1.21, 4.73)
150cm (R) 0 1          
Antenatal care              
Yes 0.48 -1.333 0.096 192.804 0 0.263 (0.13, 0.54)
No (R) 0 1          
Place of delivery              
Home 0.3302 -0.917 0.177 26.841 0.039 1.399 (0.96, 1.76)
Institutional(R) 0 1          
Duration of labour              
<2 day 0.7404 -2.056 0.055 1397.4 0 0.127 (0.05, 0.29)
2-4 day 0.9228 -2.562 0.05 2427.45 0 0.077 (0.02, 0.27)
>4 day (R) 0 1          
Mode of delivery              
Vaginal 0.5124 -1.423 0.093 234.122 0 0.241 (0.11, 0.51)
Others (R) 0 1          
Length              
2 cm 0.386 -1.072 0.153 49.092 0.017 0.342 (0.14, 0.83)
3-5 cm 0.3072 -0.853 0.192 19.737 0.058 0.426 (0.17, 1.03)
>5 cm (R) 0 1          
Width              
2 cm -0.0493 0.137 0.414 0.109 0.704 0.147 (0.16, 1.33)
3-5 cm 0.3719 -1.033 0.196 27.777 0.061 0.356 (0.12, 1.05)
>5 cm (R) 0 1
Status of urethra              
Intact 0.2956 -0.821 0.156 27.697 0.021 0.439 (0.22, 0.88)
Partially damaged 0.2099 -0.583 0.297 3.853 0.274 0.558 (0.19, 1.58)
C.destructed(R) 0 1          
AIC 1153.8            
SE: Standard Error; R: Reference
Table 3: The parameter estimates, standard errors and the hazard ratios in the final Weibull regression model of obstetric fistula patients (at Yirgalem Hamlin Fistula Hospital, during (2011-2012).