Table 8. The prevalences of diabetes and hypertension in each age group of Japanese incinerator workers compared with those of the Japanese general population.

Age (yr)	Concentration of serum total dioxin (pg TEQ/g lipid)								Diabetes							Hypertension
	This study				Japanese general population1				This study			Japanese general population2				This study		Japanese general population2
	Median	Min	Max		Median	Min	Max		n	Rate		n	Rate	p		Rate		n	Rate	p
≤29	8.3	3.9	32.6		11	0.8	54		98	1.0%		114	0.0%	0.28		23.5%		122	6.6%	<0.01
30–39	12.0	3.7	106.7		12	0.1	45		156	2.6%		212	0.5%	0.09		34.0%		220	19.1%	<0.01
40–49	14.4	5.3	100.0		17	1.5	95		201	5.5%		207	4.8%	0.05		46.3%		214	35.5%	<0.05
50–59	18.6	5.5	110.3		26	1.1	130		184	12.0%		350	13.1%	0.70		60.9%		363	59.2%	0.35
60–69	21.3	7.2	110.2		31	6.9	120		39	17.9%		389	14.7%	0.58		59.0%		411	66.7%	0.33
Total	13.7	3.7	110.3		19	0.1	130		678	6.6%		1,272	9.0%	0.07		44.8%		1,330	46.2%	0.55

¹Serum concentrations of dioxins in the male and female general population living in urban, farming and fishing areas of Japan obtained from the MOEJ reports²⁷⁾. ²The prevalences of diabetes and hypertension in the male Japanese general population were quoted from National Health and Nutrition Survey in 2006³²⁾. p was computed with the χ² test