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Table 6 Hazard ratio of pregnancy since last birth: bivariable and multivariable analysis

From: Childbearing desires and behaviour: a prospective assessment in Nairobi slums

  bivariable analysis Multivariable analysis
Hazard ratio p-value 95% CI Hazard ratio p-value 95% CI
Fertility desire
 Want no more 0.37 < 0.001 0.309 0.451 0.50 < 0.001 0.401 0.628
 Want in 5+ years 0.48 < 0.001 0.406 0.574 0.57 < 0.001 0.472 0.678
 Want in 2–4 years 1.00     1.00    
 Want in < 2 years 1.14 0.528 0.757 1.721 1.09 0.688 0.720 1.646
 Undecided/want another, timing not specified/after marriage 0.44 < 0.001 0.319 0.621 0.66 0.025 0.466 0.949
Site
 Korogocho 1.00     1.00    
 Viwandani 0.64 < 0.001 0.553 0.741 0.66 < 0.001 0.555 0.780
Education
 Incomplete primary/no education 1.00     1.00    
 Completed primary 0.86 0.06 0.735 1.007 0.95 0.57 0.801 1.130
 Secondary+ 0.55 < 0.001 0.446 0.680 0.68 0.001 0.538 0.851
Age
 15–19 1.00     1.00    
 20–24 0.89 0.276 0.730 1.094 0.90 0.327 0.718 1.117
 25–29 0.71 0.003 0.572 0.891 0.76 0.047 0.584 0.997
 30–49 0.60 < 0.001 0.473 0.771 0.62 0.003 0.453 0.845
Living children
 1 1.00     1.00    
 2 0.80 0.015 0.667 0.958 0.84 0.077 0.684 1.020
 3+ 0.85 0.047 0.718 0.998 0.97 0.805 0.762 1.235
Marital status
 Married/Living together 1.00     1.00    
 Previously married 0.46 < 0.001 0.313 0.685 0.55 0.004 0.369 0.824
 Never married 0.46 < 0.001 0.331 0.630 0.42 < 0.001 0.293 0.597
Ethnicity
 Kikuyu 1.00     1.00    
 Luhya 1.81 < 0.001 1.443 2.281 1.60 < 0.001 1.269 2.026
 Luo 1.80 < 0.001 1.442 2.256 1.47 0.001 1.165 1.851
 Kamba 1.30 0.027 1.030 1.649 1.45 0.004 1.127 1.855
 Other 1.99 < 0.001 1.585 2.486 1.46 0.002 1.145 1.867
  1. N = 4171