Skip to main content

Table 6 Selected baseline covariates used in logit estimation for the propensity score before and after matching (group A)

From: Women’s employment, income and divorce in West Germany: a causal approach

 

Raw sample

Matched sample

Treated

Control

ND

Treated

Control

ND

At t0

 Age

38.33

36.73

0.25

38.33

38.06

0.04

 Age difference to spouse

3.33

3.19

0.03

3.33

3.23

0.02

 Marriage duration

14.86

13.00

0.27

14.86

14.62

0.03

In t−729 to t−365

 Childbirth (one if yes)

0.01

0.05

− 0.51

0.01

0.01

− 0.03

At t−730

 Number of child 0–2

0.14

0.28

− 0.37

0.14

0.16

− 0.04

 Number of child 3–5

0.37

0.50

− 0.23

0.37

0.39

− 0.04

 Number of child 6–15

1.06

1.08

− 0.02

1.06

1.08

− 0.02

 Number of child 16 and older

0.37

0.22

0.21

0.37

0.35

0.03

In t−1094 to t−730

 Days schooling (higher)

6.50

3.78

0.06

6.50

4.93

0.04

 Days vocational training

0.54

1.14

− 0.10

0.54

0.79

− 0.04

 Days care

11.70

9.89

0.03

11.70

13.75

− 0.03

 Days parental leave

223.29

261.79

− 0.22

223.29

229.19

− 0.03

 Days work disability

0.00

0.00

NA

0.00

0.00

NA

 Days unemployed

6.78

12.36

− 0.13

6.78

7.64

− 0.02

 Days employed (marginal)

150.00

113.09

0.23

150.00

136.66

0.08

 Days employed (regular)

0.00

0.00

NA

0.00

0.00

NA

 Daily income (marginal)

3.76

3.14

0.16

3.76

3.49

0.07

 Daily income (regular)

0.00

0.00

NA

0.00

0.00

NA

 Yearly income (marginal)

1114.17

870.26

0.18

1114.17

1018.44

0.07

 Yearly income (regular)

0.00

0.00

NA

0.00

0.00

NA

From first record to t−730

 Lifetime days schooling (higher)

309.07

419.36

− 0.19

309.07

327.55

− 0.03

 Lifetime days vocational training

425.54

401.22

0.05

425.54

412.22

0.03

 Lifetime days tenure

1517.30

1406.73

0.08

1517.30

1457.04

0.04

 Lifetime days tenure (yearly)

79.69

78.78

0.01

79.69

77.26

0.04

Case numbers

144

654

 

142

642

 
  1. Mean values for selected covariates (baseline). ND is the normalized difference: \( \frac{{x_{t} - x_{c} }}{{\sqrt {\frac{{V_{xt} + V_{xc} }}{2}} }} \) with \( V_{xt} = \frac{1}{{\left( {N_{t} - 1} \right)}}*\mathop \sum \nolimits_{i = 1}^{{N_{t} }} \left( {x_{it} - x_{t} } \right)^{2} \) (Vxc respectively) (Rosenbaum and Rubin 1985). Matched sample is based on kernel matching (Epanechnikov) with h = 0.082. Lifetime days tenure (yearly) is calculated by: Lifetime days tenure/[age-16-(lifetime days school/365)-(lifetime days training/365)]. T0 is the day the divorce file was opened. Case numbers for the raw and matched sample deviate because some cases are lost by kernel matching under the chosen bandwidth