Table 2 Association of body composition parameters with total BMD aged 20–59 years (n = 10,096),NHANES 2011–2018

Android FM%

Q1(11.35–28.88)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(28.88–35.70)

-0.0124 (-0.0181, -0.0066) 0.000022

-0.0045 (-0.0100, 0.0011) 0.114710

-0.0153 (-0.0208, -0.0098) < 0.000001

Q3(35.70–41.70)

-0.0254 (-0.0312, -0.0197) < 0.000001

-0.0074 (-0.0131, -0.0018) 0.010318

-0.0323 (-0.0388, -0.0258) < 0.000001

Q4(41.70-59.15)

-0.0525 (-0.0583, -0.0468) < 0.000001

-0.0159 (-0.0219, -0.0098) < 0.000001

-0.0678 (-0.0762, -0.0593) < 0.000001

Android LM%

Q1(40.85–58.30)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(58.30–64.30)

0.0271 (0.0213, 0.0330) < 0.000001

0.0084 (0.0027, 0.0141) 0.003834

0.0355 (0.0296, 0.0413) < 0.000001

Q3(64.30-71.12)

0.0402 (0.0344, 0.0460) < 0.000001

0.0114 (0.0056, 0.0172) 0.000133

0.0524 (0.0455, 0.0593) < 0.000001

Q4(71.12–88.64)

0.0525 (0.0468, 0.0583) < 0.000001

0.0159 (0.0098, 0.0219) < 0.000001

0.0678 (0.0593, 0.0762) < 0.000001

Gynoid FM%

Q1(11.82–28.08)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(28.08–35.07)

-0.0210 (-0.0266, -0.0155) < 0.000001

-0.0129 (-0.0185, -0.0073) 0.000006

-0.0196 (-0.0251, -0.0142) < 0.000001

Q3(35.07–42.53)

-0.0628 (-0.0685, -0.0572) < 0.000001

-0.0271 (-0.0346, -0.0196) < 0.000001

-0.0440 (-0.0516, -0.0364) < 0.000001

Q4(42.53–61.90)

-0.0847 (-0.0903, -0.0790) < 0.000001

-0.0377 (-0.0461, -0.0292) < 0.000001

-0.0718 (-0.0808, -0.0629) < 0.000001

Gynoid LM%

Q1(38.10-57.47)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(57.47–64.93)

0.0218 (0.0162, 0.0274) < 0.000001

0.0106 (0.0049, 0.0163) 0.000260

0.0278 (0.0223, 0.0333) < 0.000001

Q3(64.93–71.92)

0.0637 (0.0581, 0.0692) < 0.000001

0.0248 (0.0172, 0.0324) < 0.000001

0.0522 (0.0447, 0.0597) < 0.000001

Q4(71.92–88.18)

0.0847 (0.0790, 0.0903) < 0.000001

0.0377 (0.0292, 0.0461) < 0.000001

0.0718 (0.0629, 0.0808) < 0.000001

Arm FM%

Q1(11.20-24.09)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(24.09–32.19)

-0.0209 (-0.0265, -0.0153) < 0.000001

-0.0105 (-0.0161, -0.0049) 0.000237

-0.0230 (-0.0287, -0.0173) < 0.000001

Q3(32.19–42.79)

-0.0651 (-0.0707, -0.0595) < 0.000001

-0.0247 (-0.0319, -0.0175) < 0.000001

-0.0554 (-0.0634, -0.0475) < 0.000001

Q4(42.79–66.77)

-0.0793 (-0.0850, -0.0736) < 0.000001

-0.0265 (-0.0347, -0.0183) < 0.000001

-0.0882 (-0.0983, -0.0780) < 0.000001

Arm LM%

Q1(31.44–53.66)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(53.66–63.92)

0.0125 (0.0069, 0.0182) 0.000013

-0.0011 (-0.0068, 0.0046) 0.703474

0.0238 (0.0178, 0.0298) < 0.000001

Q3(63.92–71.85)

0.0564 (0.0508, 0.0620) < 0.000001

0.0089 (0.0013, 0.0165) 0.020958

0.0501 (0.0418, 0.0584) < 0.000001

Q4(71.85–84.68)

0.0765 (0.0708, 0.0822) < 0.000001

0.0180 (0.0096, 0.0264) 0.000027

0.0674 (0.0572, 0.0775) < 0.000001

Leg FM%

Q1(10.80-26.68)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(26.68–34.47)

-0.0242 (-0.0298, -0.0186) < 0.000001

-0.0161 (-0.0217, -0.0104) < 0.000001

-0.0254 (-0.0308, -0.0199) < 0.000001

Q3(34.47–42.94)

-0.0613 (-0.0669, -0.0557) < 0.000001

-0.0280 (-0.0352, -0.0208) < 0.000001

-0.0531 (-0.0604, -0.0457) < 0.000001

Q4(42.94–61.84)

-0.0867 (-0.0923, -0.0811) < 0.000001

-0.0409 (-0.0491, -0.0327) < 0.000001

-0.0858 (-0.0945, -0.0771) < 0.000001

Leg LM%

Q1(35.74–54.11)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(54.11–62.16)

0.0242 (0.0187, 0.0298) < 0.000001

0.0109 (0.0052, 0.0166) 0.000193

0.0274 (0.0219, 0.0328) < 0.000001

Q3(62.16–69.65)

0.0646 (0.0591, 0.0702) < 0.000001

0.0223 (0.0148, 0.0298) < 0.000001

0.0525 (0.0451, 0.0600) < 0.000001

Q4(69.65–85.04)

0.0806 (0.0750, 0.0862) < 0.000001

0.0293 (0.0210, 0.0377) < 0.000001

0.0652 (0.0565, 0.0740) < 0.000001

Torso FM%

Q1(10.60-25.77)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(25.77–32.07)

-0.0200 (-0.0257, -0.0144) < 0.000001

-0.0114 (-0.0170, -0.0059) 0.000053

-0.0248 (-0.0304, -0.0193) < 0.000001

Q3(32.07–38.58)

-0.0368 (-0.0425, -0.0311) < 0.000001

-0.0123 (-0.0181, -0.0065) 0.000032

-0.0416 (-0.0483, -0.0349) < 0.000001

Q4(38.58–56.27)

-0.0626 (-0.0684, -0.0568) < 0.000001

-0.0152 (-0.0217, -0.0087) 0.000004

-0.0779 (-0.0870, -0.0687) < 0.000001

Torso LM%

Q1(42.78–60.06)

reference

reference

reference

< 0.001

Q2(60.06–66.40)

0.0248 (0.0190, 0.0307) < 0.000001

0.0015 (-0.0044, 0.0073) 0.623821

0.0312 (0.0250, 0.0375) < 0.000001

Q3(66.40-72.55)

0.0431 (0.0373, 0.0488) < 0.000001

0.0028 (-0.0034, 0.0090) 0.370732

0.0458 (0.0383, 0.0532) < 0.000001

Q4(72.55–86.90)

0.0594 (0.0536, 0.0652) < 0.000001

0.0097 (0.0032, 0.0163) 0.003548

0.0641 (0.0550, 0.0733) < 0.000001

Total FM%

Q1(11.69–26.29)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(26.29–32.33)

-0.0226 (-0.0282, -0.0170) < 0.000001

-0.0104 (-0.0160, -0.0048) 0.000264

-0.0251 (-0.0307, -0.0195) < 0.000001

Q3(32.33–39.53)

-0.0595 (-0.0651, -0.0539) < 0.000001

-0.0243 (-0.0307, -0.0179) < 0.000001

-0.0593 (-0.0665, -0.0521) < 0.000001

Q4(39.53–55.37)

-0.0770 (-0.0826, -0.0713) < 0.000001

-0.0248 (-0.0322, -0.0174) < 0.000001

-0.0943 (-0.1038, -0.0848) < 0.000001

Total LM%

Q1(42.99–57.75)

reference

< 0.001

reference

< 0.001

reference

< 0.001

Q2(57.75–64.70)

0.0159 (0.0102, 0.0216) < 0.000001

-0.0020 (-0.0078, 0.0038) 0.494247

0.0275 (0.0214, 0.0336) < 0.000001

Q3(64.70–70.50)

0.0533 (0.0476, 0.0589) < 0.000001

0.0096 (0.0028, 0.0164) 0.005848

0.0553 (0.0476, 0.0631) < 0.000001

Q4(70.50-84.37)

0.0730 (0.0673, 0.0787) < 0.000001

0.0157 (0.0082, 0.0233) 0.000047

0.0727 (0.0631, 0.0822) < 0.000001