Table 6: Incidence Rate for Prolonged Labor in the Presence or Absence of Hiesho by Age Group

Age Regression Coefficient (B) Standard Error (SE) Wald Statistic (SE/B)2 Degrees of Freedom Significant Probability (p) Odds Ratio (OR) 95% Confidence Interval (CI Value)
<35* 0.80 0.23 11.78 1 0.001 2.24 1.41-3.54
35-39** 0.93 0.37 6.36 1 0.012 2.56 1.23-5.26
40≤*** 1.97 0.80 6.05 1 0.014 7.19 1.49-34.6

Goodness of fit of the model
* Chi-square test p<0.001, Hosmer-Lemeshow test 0.57, discriminant accuracy rate 94.4%.
** Chi-square test p<0.001, Hosmer-Lemeshow test 0.22, discriminant accuracy rate 94.8%.
*** Chi-square test p=0.057, Hosmer-Lemeshow test 0.59, discriminant accuracy rate 93.0%.
n *=1783 ˎ **=870 ˎ ***=157.