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Table 1 The baseline characteristics by ABSI: National Health and Nutrition Examination Survey 2007–2018

From: Central obesity may affect bone development in adolescents: association between abdominal obesity index ABSI and adolescent bone mineral density

Characteristics

ABSI

Overall

Q1( < = 0.7399)

Q2(> 0.7399 & <= 0.7654)

Q3(> 0.7654 & <= 0.7963)

Q4(> 0.7963)

p

Number of subjects (n)

1557

394

384

388

391

 

AGE (years, mean (SD))

15.44 (2.23)

15.86 (2.09)

15.59 (2.23)

15.16 (2.15)

15.14 (2.37)

< 0.001

GENDER

     

< 0.001

 female

715 (45.92)

144 (36.55)

156 (40.62)

189 (48.71)

226 (57.80)

 

 male

842 (54.08)

250 (63.45)

228 (59.38)

199 (51.29)

165 (42.20)

 

RACE (%)

     

< 0.001

 Mexican American

413 (26.5)

59 ( 15.0)

88 ( 22.9)

116 ( 29.9)

150 ( 38.4)

 

 Other Hispanic

201 (12.9)

40 ( 10.2)

52 ( 13.5)

57 ( 14.7)

52 ( 13.3)

 

 Non-Hispanic White

519 (33.3)

107 ( 27.2)

133 ( 34.6)

136 ( 35.1)

143 ( 36.6)

 

 Non-Hispanic Black

340 (21.8)

171 ( 43.4)

88 ( 22.9)

55 ( 14.2)

26 ( 6.6)

 

 Other Race

84 ( 5.4)

17 ( 4.3)

23 ( 6.0)

24 ( 6.2)

20 ( 5.1)

 

PIR (%)

     

0.187

 <1.3

639 (41.0)

149 ( 37.8)

150 ( 39.1)

161 ( 41.5)

179 ( 45.8)

 

 >3.5

357 (22.9)

96 ( 24.4)

99 ( 25.8)

79 ( 20.4)

83 ( 21.2)

 

 1.3–3.5

561 (36.0)

149 ( 37.8)

135 ( 35.2)

148 ( 38.1)

129 ( 33.0)

 

ENERGY (kcal/day, mean (SD))

2077.87 (827.67)

2194.64 (936.31)

2147.48 (802.46)

2011.85 (780.71)

1957.36 (758.33)

< 0.001

MET score (per week, mean (SD))

953.61 (997.32)

1133.56 (1143.21)

1015.57 (1002.54)

911.82 (963.56)

752.88 (815.14)

< 0.001

cotinine (ng/mL, mean (SD))

14.04 (50.65)

17.31 (56.44)

15.14 (52.86)

12.78 (47.06)

10.93 (45.37)

0.316

phosphorus (mg/dL, mean (SD))

4.36 (0.67)

4.29 (0.62)

4.36 (0.65)

4.40 (0.72)

4.40 (0.70)

0.052

calcium (mg/dL, mean (SD))

9.62 (0.31)

9.61 (0.31)

9.65 (0.32)

9.62 (0.31)

9.60 (0.30)

0.105

ALP (IU/L, mean (SD))

134.81 (92.08)

120.51 (78.56)

133.31 (95.23)

141.70 (100.12)

143.84 (91.74)

0.001

Total femur BMD (g/cm2, mean (SD))

1.00 (0.16)

1.08 (0.15)

1.00 (0.15)

0.97 (0.14)

0.94 (0.15)

< 0.001

Femoral neck BMD (g/cm2, mean (SD))

0.92 (0.15)

0.98 (0.15)

0.92 (0.15)

0.90 (0.14)

0.88 (0.14)

< 0.001

Trochanter BMD (g/cm2, mean (SD))

0.78 (0.14)

0.85 (0.14)

0.79 (0.13)

0.76 (0.12)

0.73 (0.12)

< 0.001

Intertrochanter BMD (g/cm2, mean (SD))

1.14 (0.18)

1.23 (0.18)

1.15 (0.17)

1.12 (0.17)

1.08 (0.17)

< 0.001

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