Table 3.

Working conditions by migrant status

Working conditions	Locals		Migrants		Effect size (Cramer’s V)	p-value
	n	%	n	%
Complete satisfaction with income	107	11.8	33	11.2	<0.1	0.75
Exposure to hazardous working conditions
Carry loads heavier than 20kg at least 10 times a day	387	42.8	132	44.6	<0.1	0.59
Perform repetitive movements with your hand or wrist at least 3 hours a day	583	64.5	197	66.6	<0.1	0.52
Carry out work tasks or use work methods that you are not comfortable with	508	56.2	192	64.9	<0.1	<0.01
Work in a bended, twisted posture	299	33.1	119	40.2	<0.1	0.03
Work at a height of 2 meters or more above the ground or floor	304	33.6	115	38.9	<0.1	0.10
Work at a noisy environment	437	48.3	146	49.3	<0.1	0.77
Work in extremely hot or cold places	363	40.2	142	48.0	<0.1	0.02
Insufficient lighting	393	43.5	159	53.7	<0.1	<0.01
A dusty work environment	515	57.0	163	55.1	<0.1	0.57
Must stand or sit continuously for more than 2 hours	500	55.3	163	55.1	<0.1	0.94
Work night shift	337	37.3	117	39.5	<0.1	0.49
Exposure to various types of smoke	373	41.3	147	49.7	<0.1	<0.01
Exposure to chemicals (pigments, paints), toxic substances (pesticides ...)	355	39.3	145	49.0	<0.1	<0.01
Contact with flammable substances (gas, diesel ...)	384	42.5	165	55.7	0.1	<0.01
Contact with components such as rubber and plastic products	424	46.9	168	56.8	<0.1	<0.01
	Mean	SD	Mean	SD	Effect size (Cohen’s D)
Satisfaction with income (range 0–10)	5.6	2.9	5.2	3.1	0.1	0.11
Number of hazardous working conditions (range 0–15)	6.8	4.3	7.7	4.3	0.2	<0.01
Effort-Reward Imbalance Questionnaire
Responsibility and Effort score (range 5–20)	12.2	1.5	12.2	1.4	<0.1	0.56
Reward score (range 4–16)	10.1	1.7	10.1	1.8	<0.1	0.93
Overcommitment (range 5–20)	11.9	3.0	11.8	3.1	<0.1	0.98