Table 3.

12-month symptom prevalence (bold font) with 95% confidence interval (95%-CI) and total number of affected employees classified according to age groups. (prev.=prevalence)

12-month prevalence			Symptoms of neck			Symptoms of shoulder			Symptoms of elbow/forearm			Symptoms of hand/wrist
			Prev. (%)	95%-CI	n	Prev.(%)	95%-CI	n	Prev. (%)	95%-CI	n	Prev. (%)	95%-CI	n
Female, n = 379	Total female		66.0	61.2, 70.7	250	45.6	40.6, 50.7	173	15.6	11.9, 19.2	59	24.5	20.2, 28.9	93
	Age group	< 30	63.6	53.6, 73.7	56	39.8	29.5, 50.0	35	12.5	5.6, 19.4	11	28.4	19.0, 37.8	25
		30–39	68.9	60.6, 77.2	82	41.2	32.3, 50.0	49	12.6	6.6, 18.6	15	23.5	15.9, 31.2	28
		40–49	67.3	58.4, 76.2	72	50.5	41.0, 59.9	54	18.7	11.3, 26.1	20	20.6	12.9, 28.2	22
		50–59	62.5	50.6, 74.4	40	54.7	42.5, 66.9	35	20.3	10.4, 30.2	13	28.1	17.1, 39.1	18
Male, n = 678	Total male		48.1	44.3, 51.9	326	32.8	29.3, 36.3	223	14.8	12.1, 17.5	100	18.9	16.0, 21.8	128
	Age group	< 30	41.3	30.5, 52.1	33	20.0	11.2, 28.8	16	11.3	4.4, 18.2	9	8.8	2.6, 15.0	7
		30–39	49.2	42.9, 55.5	120	30.7	24.9, 36.5	75	11.1	7.2, 15.0	27	20.1	15.1, 25.1	49
		40–49	48.6	42.0, 55.2	107	36.4	30.0, 42.8	80	16.8	11.9, 21.7	37	19.5	14.3, 24.7	43
		50–59	51.6	42.9, 60.3	66	40.6	32.1, 49.1	52	20.1	13.2, 27.0	27	22.7	15.4, 30.0	29
All n = 1,057			54.5	51.5, 57.5	576	37.5	34.6, 40.4	396	15.0	12.8, 17.2	159	20.9	18.4, 23.4	221