Table 2.

Mean NICU length of stay (LOS), postmenstrual age (PMA) at discharge and corrected Z-score weight and length at time of discharge between the three groups with 95% confidence intervals.

	BIT:s N = 69	Pre-BIT:s N = 37	mBPD N = 37	p value BIT:s vs Pre-BIT:s
Mean NICU LOS (days)	140 (CI 131–149)	170 (150–192)	109 (CI 102−116)	0.007
PMA at discharge (wks)	46 (44–47)	50 (47–53)	41 (40−42)	0.01
Weight at discharge z-score	−0.80 (−1.03 to −0.57)	−1.35 (−1.72 to −0.98)	–0.73 (–1.07 to –0.40)	0.02
Length at discharge z-score	−1.78 (−2.19 to −1.37)	−2.31 (−2.90 to −1.72)	–1.32 (–1.77 to –0.88)	0.15

P values represent comparison between BIT:s and Pre-BIT:s.