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Table 3 Characteristics of the four groups classified by BMI and WHtR in women (N = 34,676)

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

 NW
(n = 16,513)
NWCO
(n = 10,483)
OB
(n = 117)
OBCO
(n = 7563)
p value
Age (y)48.0(44.0, 54.0)54.0(47.0, 59.0)46.0(43.0, 50.0)51.0(45.0, 57.0)< 0.001
Height (cm)158.5(154.7, 162.3)155.7(152.2, 159.5)164.2(158.3, 170.2)156.7(152.7, 160.9)< 0.001
Weight (kg)51.4(48.1, 55.2)55.2(51.7, 59.0)69.0(65.0, 73.9)67.9(63.0, 74.7)< 0.001
BMI (kg/m2)20.4(19.5, 21.5)22.8(21.7, 23.8)25.4(25.1, 25.9)27.2(25.9, 29.5)< 0.001
WC (cm)74.0(70.5, 76.5)82.2(79.9, 85.0)80.0(78.0, 83.5)91.2(87.0, 97.0)< 0.001
WHtR0.467(0.447, 0.483)0.524(0.511, 0.543)0.491(0.484, 0.497)0.581(0.553, 0.617)< 0.001
Hypertension3678(22.3)3254(31.0)36(30.8)3314(43.8)< 0.001
Dyslipidemia5235(31.7)5071(48.4)55(47.0)4359(57.6)< 0.001
Diabetes229(1.4)380(3.6)5(4.3)829(11.0)< 0.001
Smoking status         
 Current smoker3149(19.1)1603(15.3)31(26.5)1381(18.3)< 0.001
 Ex-smoker1128(6.8)722(6.9)15(12.8)563(7.4) 
 Non-smoker12,236(74.1)8158(77.8)71(60.7)5619(74.3) 
Alcohol intake         
 Daily2921(17.7)1569(15.0)28(23.9)890(11.8)< 0.001
 Sometimes5093(30.8)3077(29.4)34(29.1)2178(28.8) 
 None8499(51.5)5837(55.7)55(47.0)4495(59.4) 
Physical activity         
 Yes5226(31.7)3197(30.5)30(25.6)2114(28.0)< 0.001
 No11,287(68.4)7286(69.5)87(74.4)5449(72.1) 
  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