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Results of an interaction of region and union form at the time the first child was born within the hazard Models 1b–5b, shown in relative risks with 95 % confidence intervals and significance levels. Sources pairfam/DemoDiff (2008–2011), own estimates. Significance levels ***p < 0.01; **p < 0.05; *p < 0.10. E.G. Eastern German women, W.G. Western German women, Cohab. cohabiting at first childbirth, Marr. married at first childbirth
