Table 4: Incidence Rate for Premature Rupture of Membranes 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* 0.66 0.12 32.90 1 0.001 1.90 1.55-2.43
35-39** 0.22 0.17 1.73 1 0.19 1.25 0.90-1.74
40≤*** 0.47 0.40 1.38 1 0.24 1.60 0.73-3.49

Goodness of fit of the model
* Chi-square test p<0.001, Hosmer-Lemeshow test 0.023, discriminant accuracy rate 75.9%.
** Chi-square test p=0.011, Hosmer-Lemeshow test 0.744, discriminant accuracy rate 77.8%.
*** Chi-square test p=0.29, Hosmer-Lemeshow test 0.800, discriminant accuracy rate 77.7%.
n *=1783 ˎ **=870 ˎ ***=157.