Table 1.

Baseline characteristics of participants in each of the four groups.

		Neither (n=1342)		SS only (n=1009)		WI only (n=76)		Both (n=65)
		n	%	n	%	n	%	n	%
Gender
	Male	783	58.3	684	67.8	47	61.8	54	83.1
	Female	559	41.7	325	32.2	29	38.2	11	16.9
Age
	18-29	225	16.8	177	17.5	9	11.8	11	16.9
	30-39	331	24.7	271	26.9	16	21.1	19	29.2
	40-49	357	26.6	308	30.5	29	38.2	20	30.8
	50+	429	32.0	253	25.1	22	28.9	15	23.1
Occupation
	Manger or professional	333	24.8	338	33.5	21	27.6	19	29.2
	Clerical or sales	742	55.3	514	50.9	41	53.9	33	50.8
	Service	27	2.0	20	2.0	3	3.9	1	1.5
	Production	239	17.8	136	13.5	11	14.5	12	18.5
	Unknown	1	0.1	1	0.1	0	0.0	0	0.0
Company size
	Less than 50	603	44.9	85	8.4	7	9.2	5	7.7
	50-99	164	12.2	110	10.9	8	10.5	5	7.7
	100-299	156	11.6	184	18.2	16	21.1	7	10.8
	300-999	142	10.6	195	19.3	6	7.9	17	26.2
	1000-4999	113	8.4	195	19.3	19	25.0	11	16.9
	5000+	134	10.0	220	21.8	16	21.1	17	26.2
	Unknown	30	2.2	20	2.0	4	5.3	3	4.6
Stress check before baseline
	No	1128	84.1	563	55.8	39	51.3	23	35.4
	Yes	184	13.7	426	42.2	33	43.4	39	60.0
	Unknown	30	2.2	20	2.0	4	5.3	3	4.6
Job change in the past year (collected at 1-year follow-up)
	No	1229	91.6	957	94.8	69	90.8	57	87.7
	Yes	113	8.4	52	5.2	7	9.2	8	12.3