Methods	A prospective, double‐blinded randomized study conducted in China
Participants	Inclusion criteria: Formula‐fed preterm infants, gestational age ≥30 and <37 weeks; birthweight ≥1500 g and ≤ 2000 g with vital sign and hemodynamic parameters stable
	Exclusion criteria: Congenital diseases, expected hospitalisations <2 weeks and maternal or neonatal antibiotics or other probiotics before admission
Interventions	Intervention: Lactobacillus reuteri DSM 17938, five drops daily for minim of 7 days. Each drop had 1×108 colony‐forming units
	Comparison: Placebo
Outcomes	Sepsis, NEC, growth
Notes	Data were taken from table 2