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Table 1 Comparison of two methods for fitting fertility trends and testing fertility stalls; Kenya, whole country

From: Testing for fertility stalls in demographic and health surveys

  Cumulative fertility TFR(40) Time coefficient Testing changing slopes  
Period Begin End Slope Std. error T-test p-value Sample size
Method 1: Linear regression      (Births)
1980-1994 7.42 4.66 -0.19744 0.00769    47567
1994-2002 4.74 4.87 +0.01559 0.01446 13.010 < E-99 23575
2002-2008 4.90 3.93 -0.13854 0.02528 -5.293 1.2E-07 9900
Method 2: Logistic regression      (Women)
1980-1994 7.43 4.76 -0.04261 0.00131    17822
1994-2002 4.74 4.87 +0.00448 0.00280 15.215 < E-99 18970
2002-2008 4.92 3.92 -0.04001 0.00520 -7.526 5.3E-14 9713
  1. Note: The TFR (cumulative fertility by age 50) can be derived from the TFR(40) by dividing by 0.90.