Table 2. Standardized Mortality Ratio (SMR) of non-malignant disease (Reference: Korean men).

		Non-production	Production	Total
Person-years		37,020	150,714	187,734
All non-malignant death	N	76	585	661
	SMR	0.55	1.06	0.96
	95%CI	0.43–0.69	0.97–1.15	0.89–1.03
Disease of circulatory system	N	23	128	151
	SMR	0.61	0.89	0.84
	95%CI	0.39–0.92	0.75–1.06	0.71–0.98
Ischemic heart diseases	N	7	33	40
	SMR	0.8	0.92	0.9
	95%CI	0.32–1.65	0.64–1.30	0.64–1.23
Cerebrovascular disease	N	13	61	74
	SMR	0.65	0.83	0.79
	95%CI	0.34–1.11	0.63–1.06	0.62–0.99
Disease of respiratory system	N	3	25	28
	SMR	0.39	0.97	0.84
	95%CI	0.08–1.14	0.63–1.43	0.56–1.21
Pneumonia	N	2	8	10
	SMR	1.22	1.36	1.33
	95%CI	0.14–4.39	0.59–2.68	0.64–2.45
Disease of the digestive system	N	11	102	113
	SMR	0.54	1.13	1.03
	95%CI	0.27–0.97	0.93–1.38	0.85–1.23
Liver diseases	N	9	93	102
	SMR	0.51	1.16	1.04
	95%CI	0.23–0.97	0.94–1.42	0.85–1.27
Disease of the genitourinary system	N	3	9	12
	SMR	1.43	1.07	1.14
	95%CI	0.29–4.18	0.49–2.04	0.59–2.00
Injury, poisoning and external causes	N	23	219	242
	SMR	0.57	1.29	1.15
	95%CI	0.36–0.85	1.12–1.47	1.01–1.30
Suicide	N	5	61	66
	SMR	0.41	1.19	1.04
	95%CI	0.13–0.95	0.91–1.53	0.80–1.32