Table 2. Multivariate logistic regression analyses results for the healthy and hypertensive groups of community-dwelling Korean adults (n = 1,721).

Prevalence of hypertension as compared to healthy individuals		ß	Standard error	Odds ratio	95% confidence interval	p
Sleep duration	<5 hours	Ref.		1.000
	6 hours	−0.518	0.365	0.596	0.291–1.219	0.156
	7 hours	−0.552	0.384	0.576	0.271–1.222	0.151
	>8 hours	−0.492	0.345	0.611	0.311–1.203	0.154
Mental stress	Very low	Ref.		1.000
	Low	0.448	0.318	1.565	0.839–2.917	0.159
	High	0.046	0.569	1.047	0.343–3.195	0.936
	Very high	0.974	0.342	2.648	1.356–5.173	0.004**
Education level	Elementary school or lower	Ref.		1.000
	Middle school	−0.184	0.275	0.832	0.485–1.427	0.504
	High school	−0.414	0.234	0.661	0.418–1.047	0.077
	College or higher	−0.318	0.262	0.727	0.435–1.216	0.224
Economic status	Very poor	Ref.		1.000
	Poor	−0.768	0.325	0.464	0.246–0.876	0.018*
	Rich	−0.816	0.332	0.442	0.230–0.848	0.014*
	Very rich	−0.241	0.291	0.786	0.444–1.390	0.407
Frequency of drinking	Non-drinker	Ref.		1.000
	Once per month	−0.184	0.276	0.832	0.484–1.429	0.504
	2–3 times per month	0.105	0.321	1.111	0.592–2.084	0.743
	>4 times per month	0.285	0.403	1.330	0.604–2.929	0.479
Smoking status	Non-smoker	Ref.		1.000
	Ex-smoker	−0.084	0.360	0.920	0.455–1.861	0.816
	Current smoker	−0.247	0.406	0.781	0.353–1.729	0.542

*p < 0.05; **p < 0.01, tested by multivariate logistic regression analysis after adjusting for age and gender