Table 2

Calculated peroral phosphorus and calcium intakes (mg/kg of body weight/day) of preterm infants at different ages receiving either high or low vitamin D doses

		Group A 200 IU/kg of body weight/ up to 400 IU/day			Group B 960 IU/day
		n	Median		Range	n	Median	Range	p Value
Phosphorus at week 3	21	30	23–91	18	46	26–105	0.15
4	16	73	11–95	12	82	25–95	0.22
5	14	42	0–86	11	86	25–128	0.02
6	14	30	0–95	8	78	28–86	0.16
7	11	30	0–89	6	60	15–93	0.65
Average phosphorus intake	10	46	7–87	6	75	41–86	0.13
Calcium at week 3	21	62	20–136	18	69	54–156	0.11
4	16	85	13–142	12	122	53–170	0.16
5	14	76	0–128	11	128	53–157	0.02
6	14	59	35–141	8	124	58–147	0.09
7	11	60	23–133	6	105	31–138	0.51
Average calcium intake	10	82	25–131	6	114	75–128	0.16