Table 1.

Socio-demographic and family-related characteristics of the study sample (n = 3129)

	n	%
Mothers' age (yr)
17-19	4	0.1
20-29	291	9.4
30-39	1328	42.8
40-49	1339	43.2
50-60	137	4.4
Missing	30
School education
Secondary general school	1008	32.6
Intermediate secondary school	1256	40.6
Upper secondary school	830	26.8
Missing	35
Per capita income1 (€)
≤ 925	959	35.5
926-1542	1212	44.9
≥ 1543	530	19.6
Missing	427
Number of children
1	1187	40.5
2	1277	43.5
>2	470	16.0
Missing	196
Age of youngest child (yr)
0-2	479	15.5
3-5	500	16.2
6-11	1008	32.6
12-15	687	22.2
16-18	420	13.6
Missing	35
Marital status
Married	2214	71.9
Married but separated	80	2.6
Single	400	13.0
Divorced	362	11.8
Widowed	24	0.8
Missing	49
Single motherhood
Yes	506	16.8
No	2511	83.2
Missing	112
Employment status
Housewife	439	14.3
Maternity leave	127	4.1
Unemployed	97	3.2
Early retirement	28	0.9
Work ≤ 19 hours/week	669	21.8
Work half time (20-37 hours/week)	1163	37.8
Work full time (≥ 38 hours/week)	550	17.9
Missing	56
Division of housework2
Mainly woman	1865	74.4
Woman and man alike	598	23.9
Mainly man	24	1.0
Other persons (as grandparents)	19	0.8
Missing	4
Spillover from work to family
No spillover	851	37.3
Moderate	935	41.0
Marked	494	21.7
Not employed	733
Missing	84
Effort-Reward Imbalance
Ratio > 1	598	19.3
Ratio ≤ 1	2499	80.7
Missing	32
Overcommitment
Score > 11	737	23.8
Score ≤ 11	2358	76.2
Missing	34

Notes: ¹ For calculation of per capita income information on household size and number of children were required resulting in higher frequency of missing data, ² Single mothers were excluded from calculation.