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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Popul Res Policy Rev. 2013 Mar 19;32(4):585–610. doi: 10.1007/s11113-013-9276-7

Appendix Table 2.

Effects of age coding on simulated total fertility rate and parity progression ratios for black women and women married age 25+, based on fully-interactive hazard model (bootstrapped SEs)

Black Women
Married age 25 +
5-yr age categories single-year age 5-yr age categories single-year age
Simulated Total Fertility Rate
Average number of lifetime births
 1st parity 0.96 (0.01) 0.96 (0.01) 0.95 (0.01) 0.95 (0.01)
 2nd parity 0.82 (0.02) 0.82 (0.02) 0.82 (0.02) 0.83 (0.01)
 3rd parity 0.48 (0.02) 0.48 (0.02) 0.37 (0.02) 0.37 (0.01)
 4th parity 0.25 (0.02) 0.25 (0.02) 0.14 (0.01) 0.14 (0.01)
 5th or higher parity 0.20 (0.03) 0.20 (0.03) 0.07 (0.01) 0.07 (0.01)
 All parities 2.71 (0.09) 2.71 (0.09) 2.36 (0.04) 2.37
Simulated Parity Proqression Ratios
Probability of progression from:
 No births to 1st parity 0.96 (0.01) 0.96 (0.01) 0.95 (0.01) 0.95 (0.01)
 1st to 2nd parity 0.86 (0.02) 0.86 (0.02) 0.86 (0.01) 0.87 (0.01)
 2nd to 3rd parity 0.58 (0.02) 0.58 (0.02) 0.45 (0.02) 0.45 (0.02)
 3rd to 4th parity 0.53 (0.02) 0.53 (0.02) 0.39 (0.01) 0.39 (0.01)
 4th to 5th or higher parity 0.80 (0.07) 0.79 (0.07) 0.52 (0.03) 0.52 (0.03)

All other covariates held at their mean

Data and Sample: See Table 1.