Table 1

Comparisons of indirectly standardised admission ratios by industry for noise-only exposed workers

Industry	Gender	Observed no	Person-years	Indirectly standardised admission ratio	95% CI
Glass and glass products	Men	28	35582	1.27	0.84 to 1.83
Glass and glass products	Women	3	4372	1.18	0.24 to 3.46
Ceramic ware	Men	10	14657	1.03	0.49 to 1.89
Ceramic ware	Women	10	10428	1.70	0.82 to 3.13
Cement, lime, plaster and plaster products	Men	47	41629	1.54	1.13 to 2.05
Cement, lime, plaster and plaster products	Women	8	3597	3.23	1.40 to 6.37
Other non-metallic mineral products	Men	28	38288	1.03	0.69 to 1.49
Other non-metallic mineral products	Women	2	7331	0.42	0.05 to 1.53
Basic iron and steel	Men	120	169952	1.06	0.88 to 1.26
Basic iron and steel	Women	6	4177	2.21	0.81 to 4.81
Basic precious and non-ferrous metals	Men	38	60228	0.97	0.69 to 1.33
Basic precious and non-ferrous metals	Women	1	2889	0.53	0.01 to 2.97
Cast metals	Men	59	46538	1.64	1.25 to 2.11
Cast metals	Women	5	4445	1.57	0.51 to 3.68
Control group: noise-only exposed workers	Men	697	1107033	–	–
Control group: noise-only exposed workers	Women	230	409609	–	–