Abstract
Objective To describe the variation in surgical gastrostomy tube (SGT) placement in premature
infants among neonatal intensive care units (NICUs) in the United States.
Study Design We identified 8,781 premature infants discharged from 114 NICUs in the Pediatrix
Medical Group from 2010 to 2012. The outcome of interest was SGT placement prior to
discharge home from an NICU. Unadjusted proportions and adjusted risk estimates were
calculated to quantify variation observed among individual NICUs.
Results SGT placement occurred in 360 of 8,781 (4.1%) of infants. Across NICUs, any gastrostomy
tube placement ranged from none in 45 NICUs up to 19.6%. Adjusted risk estimates for
factors associated with SGT placement included gestational age at birth (odds ratio
[OR]: 0.7/week, 95% confidence interval[CI]: [0.65, 0.75]), small for gestational
age status (OR: 2.78 [2.09, 3.71]), administration of antenatal steroids (OR: 0.69
[0.52, 0.92]), Hispanic ethnicity (OR: 0.54 [0.37, 0.78]), and higher 5-minute Apgar
scores (7–10, OR: 0.54 [0.37, 0.79]).
Conclusion Individual NICU center has a strong clinical effect on the probability of SGT placement
relative to other medical factors. Future work is needed to understand the cause of
this variation and the degree to which it represents over or under use of gastrostomy
tubes.
Keywords
premature infant - nutrition - surgical - feeding