Table 2.

Body composition in monozygotic twin adults with and without cholecalciferol supplementation.

	CG (n = 45)				SG (n = 45)				CG (T60) x SG (T60)
	T0	T60	Effect size	p value	T0	T60	Effect size	p value	Effect size	p value
BMI, (kg/m2)	25.5 (21.3–30.5)	25.5 (20.5–30.1)	0.218	0.614	24.9 (22.1–33.9)	24.5 (21.6–33.8)	0.222	0.602	0.019	0.782
Total body fat, (kg)	18.1 (15.3–25.6)	18.1 (14.9–24.9)	0.054	0.639	19.2 (15.8–24.3)	18.6 (15.1–23.8)	0.116	0.259	0.042	0.812
Total body fat, (%)	29.9 (26.3–36.8)	30.7 (26.6–38.5)	0.048	0.758	32.3 (27.2–37.7)	30.5 (26.7–36.9)	0.120	0.001	0.013	0.977
Arm Fat, (%)	31.3 (25.9–38.0)	32.2 (26.1–39.5)	0.037	0.554	33.5 (27.8–40.8)	33.9 (27.3–40.3)	0.043	0.390	0.072	0.583
Trunk Fat, (%)	30.4 (24.9–36.4)	30.3 (25.1–36.4)	0.001	0.758	31.8 (25.7–38.4)	31.4 (27.7–36.9)	0.015	0.228	0.138	0.506
Android fat, (%)	29.8 (22.7–38.4)	27.2 (22.2–38.4)	0.074	0.360	31.7 (23.0–38.2)	29.8 (25.3–37.5)	0.050	0.001	0.113	0.548
Gynoid Fat, (%)	35.8 (29.5–42.3)	34.7 (29.6–43.4)	0.006	0.831	37.9 (30.8–43.0)	36.5 (29.8–41.5)	0.094	0.005	0.049	0.687
Leg Fat, (%)	33.5 (27.7–40.7)	32.7 (28.2–40.6)	0.030	0.097	35.4 (29.7–40.3)	35.0 (30.1–40.0)	0.001	0.692	0.122	0.480
Total Lean Mass, (kg)	39.0 (35.1–45.5)	38.6 (34.7–47.6)	0.091	0.839	38.2 (34.5–47.6)	38.2 (34.1–47.7)	0.015	0.554	0.067	0.781
Android Lean Mass, (kg)	26.2 (22.5–31.8)	26.3 (22.7–32.3)	0.017	0.906	26.2 (22.5–31.6	24.8 (22.3–33.7)	0.011	0.877	0.009	0.681
Gynoid Lean Mass, (kg)	61.1 (53.8–74.8)	62.0 (56.0–74.5)	0.005	0.616	58.3 (51.8–68.9)	59.6 (52.9–70.4)	0.052	0.007	0.193	0.362
BMC, (g)	2,248.5 (2060.7–2,558.5)	2,182.5 (2,309.0–2,542.8)	0.056	0.233	2,298.0 (2007.0–2,837.5)	2,197.0 (1950.5–2,976.8)	0.048	0.433	0.118	0.715

Continuous variables are shown as median (percentile 25–percentile 75) and compared by Wilcoxon test (intra-group values) and Mann–Whitney test (inter-group values). CG, Control group; SG, Supplemented group; T0, first analysis; T60, analysis 60 days after the first; BMI, body mass index; BMC, bone mineral density.