Table 4A.

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

Outcomes	Covariates	Estimate (error)	p-value*
Total protein intake (unit/kg)	Osteopenia	−0.4 (0.12)	0.001
	Day of life	0.01(0.004)	0.004
Parenteral nutrition protein intake (unit/kg)	Osteopenia	0.43(0.17)	0.01
	Day of life	−0.086(0.007)	<0.0001
Enteral protein intake (unit/kg)	Osteopenia	−0.92(0.16)	<0.0001
	Day of life	0.10 (0.007)	<0.0001

^aMulti-level linear regression models were adjusted for GA, Apgar score, and gender. The final model was determined via backward selection procedures.

^*Significant at p < 0.05.

^bDaily protein intake (unit/kg) until 6 weeks post-natally.