Table I.

Descriptive statistics, clinical characteristics and biochemical measurements between three regimens of vitamin D₃ supplemented in participants

Parameter	Daily oral (n = 77)	Weekly oral (n = 77)	Intramuscular (n = 77)	P-value*
Age [years]	44.1 ±11.5	44.1 ±11.9	43.2 ±10.4	0.852
Height [cm]	160.5 ±5.9	159.7 ±6.3	161.4 ±5.2	0.324
Weight [kg]	73.2 ±15.9	77.5 ±17.1	74.4 ±16.3	0.396
Waist [cm]	73.2 ±15.9	91.3 ±12.8	89.8 ±17.9	0.848
Hip [cm]	109.3 ±10.5	110.7 ±15.9	112.3 ±13.4	0.843
BMI [kg/cm2]	27.3 ±5.8	28.0 ±6.5	26.7 ±5.5	0.441
WHR	0.79 ±0.06	0.83 ±0.09	0.79 ±0.09	0.696
Baseline 25(OH)D	9.45 ±4.10	7.45 ±3.38	7.89 ±3.69	0.008a, 0.081b, 1.00c
3rd month 25(OH)D	40.85 ±13.62	37.84 ±13.48	38.02 ±11.29	0.555a, 0.719b, 1.00c
6th month 25(OH)D	33.65 ±11.71	27.06 ±8.38	23.45 ±6.14	< 0.001a, < 0.001b, 0.154c

^*ANOVA test

BMI – body mass index, WHR – waist-to-hip ratio.

^aDaily oral vs. weekly oral

^bdaily oral vs. IM

^cweekly oral vs. IM.