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 |