Table 1.

Characteristics of research participants in Shanghai, China 2008

	Number	Percentage (%)
Age
<60 years	130	62.8
≥60 years	77	37.2
Gender
Male	86	41.5
Female	121	58.5
Marriage	190	91.8
Education > 9years	160	77.3
Smokers
smoking	61	29.5
never	146	70.5
Diabetic	17	8.2