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Table 2 Bivariate logistic regressions of male birth, controlling for unemployment change

From: Economic stress or random variation? Revisiting German reunification as a natural experiment to investigate the effect of economic contraction on sex ratios at birth

Lags of 3-month unemployment change, relative to month of birth (t)

Odds ratio (SE)

Constant (SE)

 Lag 1 (t-4:t-1)

.9990 (.0006)

1.0657*** (.0006)

 Lag 2 (t-5:t-2)

.9998 (.0005)

1.0656*** (.0006)

 Lag 3 (t-6:t-3)

1.0014** (.0005)

1.0656*** (.0006)

 Lag 4 (t-7:t-4)

1.0028*** (.0005)

1.0656*** (.0006)

 Lag 5 (t-8:t-5)

1.0025*** (.0005)

1.0655*** (.0006)

 Lag 6 (t-9:t-6)

1.0012* (.0005)

1.0656*** (.0006)

 Lag 7 (t-10:t-7)

.9997 (.0005)

1.0657*** (.0006)

 Lag 8 (t-11:t-8)

.9995 (.0005)

1.0657*** (.0006)

 Lag 9 (t-12:t-9)

1.0004 (.0006)

1.0656*** (.0006)

N (same for each model)

13 863 433

AIC (same for each model)

19 200 000

  1. Data sources: German Birth Register 1991–2010[54] and Federal Employment Agency; East and West Germany (Berlin excluded), own calculations; unemployment data for 1990 partly based on secondary sources and imputations; ***p < .001, **p < .01, *p < .05.