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Table 2 Characteristics of the four groups classified by BMI and WHtR in men (N = 82,487)

From: Associations between normal weight central obesity and cardiovascular disease risk factors in Japanese middle-aged adults: a cross-sectional study

 NW
(n = 43,055)
NWCO
(n = 12,877)
OB
(n = 1714)
OBCO
(n = 24,841)
p value*
Age (y)49.0(44.0, 55.0)54.0(48.0, 60.0)46.0(43.0, 51.0)50.0(44.0, 56.0)< 0.001
Height (cm)170.4(166.4, 174.4)167.5(163.4, 171.6)172.5(169.0, 176.2)169.7(165.6, 173.6)< 0.001
Weight (kg)63.1(58.5, 67.8)66.9(62.8, 70.7)76.2(73.0, 80.0)78.8(73.7, 85.5)< 0.001
BMI (kg/m2)21.7(20.5, 22.9)23.9(23.1, 24.4)25.5(25.2, 25.9)27.1(25.9, 29.0)< 0.001
WC (cm)79.0(75.0, 82.0)86.5(84.0, 89.0)84.2(82.0, 86.4)93.2(89.5, 98.0)< 0.001
WHtR0.465(0.443, 0.482)0.514(0.506, 0.526)0.492(0.484, 0.496)0.549(0.528, 0.577)< 0.001
Hypertension12,868(29.9)5098(39.6)626(36.5)12,147(48.9)< 0.001
Dyslipidemia18,970(44.1)7743(60.1)1017(59.3)17,118(68.9)< 0.001
Diabetes2112(4.9)1231(9.6)93(5.4)4021(16.2)< 0.001
Smoking status         
 Current smoker19,622(45.6)5254(40.8)706(41.2)10,271(41.4)< 0.001
 Ex-smoker7660(17.8)2809(21.8)347(20.3)5356(21.6) 
 Non-smoker15,773(36.6)4814(37.4)661(38.6)9214(37.1) 
Alcohol intake         
 Daily19,304(44.8)6117(47.5)617(36.0)8892(35.8)< 0.001
 Sometimes12,906(30.0)3486(27.1)629(36.7)8425(33.9) 
 None10,845(25.2)3274(25.4)468(27.3)7524(30.3) 
Physical activity         
 Yes15,711(36.5)4048(31.4)705(41.1)7644(30.8)<0.001
 No27,344(63.5)8829(68.6)1009(58.9)17,197(69.2) 
  1. Data are expressed as medians (25th percentile, 75th percentile) or n (%)
  2. *Kruskal-Wallis test or chi-squared test
  3. NW, normal weight no central obesity; NWCO, normal weight central obesity; OB, obesity no central obesity; OBCO, obesity central obesity; BMI, body mass index; WC, waist circumference; WHtR, waist-to-height ratio