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Table 1 Demographic characteristics of study participants in the NHANES 2011–2012

From: The association between serum testosterone levels and metabolic syndrome among women

Variables

Total (n = 1966)

N%b

MetSa (n = 571)

N%

Non-MetS (n = 1395)

N%

Pc

Age (years), n (%)

< 0.001

 20–39

670 (34.08)

98 (17.16)

572 (41.00)

 

 40–49

316 (16.07)

92 (16.11)

224 (16.06)

 

 50–59

336 (17.09)

126 (22.07)

210 (15.05)

 

 60–69

348 (17.70)

129 (22.59)

219 (15.70)

 

 ≥ 70

296 (15.06)

126 (22.07)

170 (12.19)

 

BMI (kg/m2), n (%)

< 0.001

 < 18.5

43 (2.19)

2 (0.35)

41 (2.94)

 

 18.5–24.9

572 (29.09)

50 (8.76)

522 (37.42)

 

 25.0-29.9

556 (28.28)

156 (27.32)

400 (28.67)

 

 ≥ 30.0

795 (40.44)

363 (63.57)

432 (30.97)

 

Race, n (%)

< 0.001

 Hispanic

392 (19.94)

134 (23.47)

258 (18.49)

 

 Non-hispanic white

749 (38.10)

230 (40.28)

519 (37.20)

 

 Black

537 (27.31)

157 (27.50)

380 (27.24)

 

 Asian

240 (12.21)

46 (8.06)

194 (13.91)

 

 Other

48 (2.44)

4 (0.70)

44 (3.15)

 

Menopausal status, n (%)

< 0.001

 No

984 (50.05)

189 (33.10)

795 (56.99)

 

 Yes

982 (49.95)

382 (66.90)

600 (43.01)

 

Serum testosterone (ng/mL), n (%)

< 0.001

 Q1 (< 12.99)

492 (25.03)

199 (34.85)

293 (21.00)

 

 Q2 (12.99–19.38)

491 (24.97)

149 (26.09)

342 (24.52)

 

 Q3 (19.39–28.38)

491 (24.97)

120 (21.02)

371 (26.59)

 

 Q4 (≥ 28.40)

492 (25.03)

103 (18.04)

389 (27.89)

 
  1. aMetS: metabolic syndrome group
  2. bN%: frequency and percentage of the total
  3. cP value: Results from Pearson’s chi-square test and Fisher’s exact test