Table 1

Frequency distribution of civil servants’ demographical and lifestyle characteristics (N = 12941)
Factors Groups N % Factors Groups N %
Gender Male 7953 61.46 Breakfast Never 249 1.92
Female 4904 37.90 Sometimes 1386 10.71
Missing value 84 0.65 Often 4355 33.65
Age 18~ 459 3.55 Every day 6860 53.01
25~ 4209 32.52 Missing value 91 0.70
35~ 4377 33.82 Sleeping time Below 4 110 0.85
45~ 3094 23.91 4~ 448 3.46
55~ 692 5.35 6~ 6251 48.30
Missing value 110 0.85 8~ 5925 45.78
Region North China 3610 27.90 10~ 132 1.02
South China, 2492 19.26 Missing value 75 0.58
Central China 1973 15.25 Physical exercisea Little or not 4683 36.19
Northwest China 2695 20.83 1 ~ 4 1939 14.98
Northeast China 2171 16.78 5 ~ 8 3793 29.31
Marital status Non-married 1845 14.26 9 ~ 12 1050 8.11
Married 10619 82.06 Above 12 1345 10.39
Divorced/Widowed/Other 331 2.56 Missing value 131 1.01
Missing value 146 1.13 Work time Below 6 1425 11.01
Education Middle school 105 0.81 6~ 9506 73.46
High school 685 5.29 10~ 1273 9.84
College 11183 86.42 12~ 386 2.98
Under graduate 738 5.70 Missing value 351 2.71
Missing value 230 1.78 Sedentarinessb Rarely 5293 40.90
Smoke No 9082 70.18 Sometimes 2814 21.74
Yes 3807 29.42 Often 2841 21.95
Missing value 52 0.40 Always 1913 14.78
Drink Never 2990 23.10 Missing value 80 0.62
A little 7034 54.35
A lot 2782 21.50
Missing value 135 1.04

a: Little or not, 1 ~ 4 times a month, 5 ~ 8 times a month, 9 ~ 12 times a month, Above 12 times a month.

b: Operating computer and sedentariness.

Xu et al.

Xu et al. BMC Public Health 2012 12:330   doi:10.1186/1471-2458-12-330

Open Data