Table 1.

Characteristics of the pregnant workers according to the variable “at least one sick leave” (SL) during pregnancy

	SL				no SL				p-value
	(N = 1113)				(N = 373)
	N	%	Mean	sd	N	%	Mean	sd
Age (y)			30.6	4.5			31.1	4.4	0.08
Age group
< 25 y	108	9.8			27	7.4			0.18
25- < 30 y	408	37.1			122	33.3
30- < 35 y	405	36.9			151	41.3
≥ 35 y	178	16.2			66	18.0
Family structure
Living with a partner (yes)	1063	96.5			352	95.4			0.31
Children at home
0 child	577	52.1			196	52.8			0.91
1 child	449	40.5			146	39.4
≥ 2 children	82	7.4			29	7.8
Home-work commuting
> 50 min/d (yes)	248	23.2			77	21.3			0.45
In car (yes)	1022	92.7			348	94.0			0.38
Home-work commuting felt as difficult
Yes	245	22.3			48	13.0			<0.001
Deprivation
EPICES score ≥ 30 (yes)	231	22.0			61	17.7			0.08
Occupational groups
Managers/supervisors	93	8.4			51	13.7			0.001
Intermediate occupations	374	33.6			91	24.4
Employees	591	53.1			216	57.9
Manual workers	55	4.9			15	4.0
Type of contract
Non-fixed term (yes)	1508	96.1			342	92.9			0.01
Working time
Full-time (yes)	868	78.8			300	81.3			0.31
Job duration
< 2 years (yes)	239	21.6			90	24.4			0.27
Company size
< 10 workers	253	23.0			114	31.2			<0.001
10 - 49 workers	332	30.2			137	37.4
≥ 50 -199 workers	295	26.8			83	22.7
≥ 200 workers	219	19.9			32	8.7
Pregnancy at risk
Yes	334	30.3			34	9.2			<0.001
Assisted reproductive therapy
Yes	84	7.6			13	3.5			0.006

N number, y years, min minutes, d day, sd standard deviation