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. Author manuscript; available in PMC: 2016 Mar 11.
Published in final edited form as: JAMA. 2015 Sep 8;314(10):1039–1051. doi: 10.1001/jama.2015.10244
Adjusted RR (95% CI) for the change per year in all infants where year-GA interaction non-significant
NEC Late-onset sepsis Severe ICH
1993–2008: 1.02 (1.01–1.03) (see eFigure 5) (see eFigure 6)
2009–2012: 0.94 (0.91–0.98)
PVL ROP stage 3+ BPD
(see eFigure 7) 1993–2003: 1.02 (1.01–1.03) (see eFigure 8)
2004–2012: 0.94 (0.93–0.95)