Figure 2. Parameter estimates for fertile and sub-fertile sub-cohorts and associated fecundability values.

Values are shown for Wilcox (□), Zinaman (▲) and Wang ( ) studies. Panel A shows the proportions in the starting cohorts modelled as fertile or sub-fertile ( %fert ₍₁₎ & %subf ₍₁₎). Panel B shows the hCG ( FEC _HCG) and clinical ( FEC _CLIN) fecundabilities and the probability of hCG pregnancies progressing to clinical pregnancies ( π _CLIN). Values are derived from modelled parameter estimates ( Table 1) and error bars indicate 95% confidence intervals.