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. 2012 Dec 20;7(12):e52033. doi: 10.1371/journal.pone.0052033

Table 3. Characteristics of included studies.

Study(year) Setting Method Participants Comparisons Oxygen adjustment criteria Outcomes
Harling(2005) [17] Single centre;Liverpool, UK RCT <31 weeksgestation 50% (N = 26) versus100% oxygen(N = 26).No routineSpO2 monitoring. Both groups: Fixedoxygen concentrationdelivered for duration ofresuscitation until cardiorespiratory stabilityachieved and surfactantgiven. Death, Apgar score, CLD/BPD, ROP, NEC, need for long-term oxygen therapy
Saugstad(1998) [18] 11 centres inIndia, Egypt,Philippines,Estonia, Spain,Norway Quasi-RCT(alternatedate ofbirth) <37 weeksgestation Air (N = 75) versus100% oxygen(N = 72). Noroutine SpO2monitoring. Lower group: Oxygenlevel increased to 100%if infant unresponsiveafter 90 seconds. Death, Apgar score, proportion of infants reaching the target oxygen saturation All data obtained from authors
Lundstrøm(1995) [19] Single centre; Copenhagen,Denmark RCT <33 weeksgestation Air (N = 34) versus80% oxygen (N = 6).No routineSpO2 monitoring. Lower group: FiO2increased in 0.1increments after oneminute in response toheart rate remaining‘below normal’. Death, Apgar score, receipt of surfactant, ROP, NEC, IVH, need for long-term oxygen therapy
Vento(2009) [20] 2 centres;Valencia, Spain RCT ≤28 weeksgestation 30% (N = 37) versus90% oxygen(N = 41). Both groups: FiO2titrated to achieve targetsaturations, 60–90seconds allowed forresponse after eachchange. If heart rate ≤60beats per minute for>30 s, oxygenconcentration increasedto 100% Death, Apgar score, receipt of intubation, receipt of surfactant, proportion of infants reaching the target oxygen saturation, CLD/BPD, ROP, NEC, IVH, duration of mechanical ventilation, duration of supplemental oxygen therapy, duration of hospital stay
Wang(2008) [21] 2 centres;San Diegoand Santa Clara,USA RCT <32 weeksgestation Air (N = 18)versus 100%oxygen (N = 23). Lower group: FiO2increased to 1.0 ifpersistent bradycardia orchest compression ormedication required.FiO2 was increased in0.25 increments ifSpO2<70% at 3 min or<85% at 5 min of lifeHigher group:Decreased FiO2 at 5 minif SpO2>95% Death, Apgar score, receipt of intubation, receipt of surfactant, IVH, duration of mechanical ventilation
Rabi(2011) [22] Single-centre;Calgary, Canada RCT ≤32 weeksgestation Air (N = 34)versus 100%(N = 72). Lower group: FiO2titrated in increments ofup to 0.2 every 15 s toachieve and maintaintarget saturations(85%–92% ). Death, Apgar score, receipt of intubation, proportion of infants reaching the target O2 saturation, CLD/BPD, duration of mechanical ventilation, duration of hospital stay