Table 1.

SMR of respiratory diseases during the period 1968–2002.

	Sakurajima + Tarumizu				Kanoya
	(high ashfall area)				(low ashfall area)
	O*	E*	SMR	95% CI	O*	E*	SMR	95% CI
Lung cancer (ICD 9th: 162)
Males	353	219.4	1.61	1.44–1.78	544	628.4	0.87	0.79–0.94
Females	138	82.4	1.67	1.39–1.95	165	222.0	0.74	0.63–0.86
COPDs (ICD 9th: 490–496)
Males	252	140.3	1.80	1.68–1.91	267	375.6	0.71	0.63–0.80
Females	134	72.5	1.85	1.53–2.16	132	201.6	0.65	0.54–0.77
Acute respiratory diseases (ICD 9th: 460–466, 480–487)
Males	389	331.1	1.17	1.06–1.29	845	945.8	0.89	0.83–0.95
Females	339	320.9	1.06	0.95–1.17	721	854.6	0.84	0.78–0.91

*Observed and expected numbers of death.