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. 2016 Mar;31(2):117–123. doi: 10.5001/omj.2016.23

Table1. Demographic characteristics of the population studied according to gender.

Variables Total, %
n = 3985
Gender, % Mann-Whitney U
Male,
n = 901
Female,
n = 3084
Z-value Asymptomatic significance (2-tailed)
Age, years
Mean±SD 42.1±15.8 47.3±16.9 40.5±15.1 –1.95 p = 0.051
Median 41.0 46.0 40.0
Age group, years
18–40 49.2 40.3 51.8
41–60 36.3 33.3 37.2
>60.1 14.5 26.3 11.0
BMI, kg/m2
Mean±SD 28.8±6.3 28.2±4.9 28.9±6.6 –10.52 p < 0.001
Median 28.1 27.8 28.3
BMI, kg/m2
<18.5 3.4 2.0 3.8
18.51–25.00 25.4 22.7 26.1
25.01–30.00 32.6 42.3 29.7
≥ 30.01 38.7 33.0 40.4