Table 1.

Disease prevalence by self-rated health status (3744 subjects who underwent health examinations at Tokai University Hachioji Hospital between April 2009 and March 2010)

	Healthy	Relatively healthy			Unhealthy			Trend
	n (%)	n (%)	OR	95 % CI	n (%)	OR	95 % CI	p
Cancera	12 (1)	73 (3)	2.70	1.50–4.88	27 (5)	3.93	2.08–7.42	<0.001
Strokeb	10 (1)	62 (3)	2.77	1.44–5.34	26 (5)	4.83	2.40–9.71	<0.001
Coronary heart diseaseb	17 (2)	81 (4)	2.14	1.27–3.60	57 (11)	6.77	4.09–11.21	<0.001
Hypertensionc	66 (6)	320 (15)	2.40	1.81–3.18	124 (25)	4.38	3.18–6.05	<0.001
Diabetesc	10 (1)	73 (3)	3.29	2.82–10.28	31 (6)	5.38	2.82–10.28	<0.001
Dyslipidemiac	60 (6)	194 (9)	1.45	1.06–1.97	67 (13)	2.09	1.45–3.01	<0.001

The odds ratios were age-adjusted by Mantel–Haenszel method. The Mantel-extension method was used as a trend test

OR odds ratio, CI confidence interval

^aPresent and past history

^bPast history

^cCurrently on treatment