Table 4B.

Co-variate adjusted multi-variable linear regression results^a of the association between nutrient intake^b and osteopenia risk among preterm infants (n = 26).

Outcomes	Covariates	Estimate	p-value*
Vitamin D intake (unit/kg)	Osteopenia	−540.2(103.8)	<0.001
	Day of life	16.0(2.93)	<0.0001
Calcium intake (unit/kg)	Osteopenia	−23.6(19.3)	0.22
	Day of life	5.14(0.56)	<0.0001
Phosphorus intake(unit/kg)	Osteopenia	−14.9(11.04)	0.18
	Day of life	2.85(0.32)	<0.0001

^aMulti-level linear regression models for repeated measures were adjusted for GA, Apgar score, and gender. The final model listed in the table was determined by backward selection procedures.

^*Significant at p < 0.05.

^bDaily nutrient intake (unit/kg) in last 2 weeks prior to X-ray diagnosis (at 42 day of life).