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Multilevel logistic regression analysis of pre-hypertension and hypertension in a community-based, cross-sectional survey of rural adults in Yunnan Province, China: 2008–2009
aThe reference group is non-pre-hypertensive.
bThe reference group is non-hypertensive.
cp<0.01
dp<0.001
ep<0.05
OR = odds ratio
CI = confidence interval
