Table 1

PICO search strategy

‘PICO’ termsDescriptionSearch terms
PopulationNewborns with respiratory distress in hospital in low and middle income countriesneonat*, newborn
RDS, respiratory distress, respiratory
resource limited, developing countries, low-income, middle-income
InterventionBubble CPAPCPAP, continuous distending airways pressure, bubble
ComparisonOxygen, mechanical ventilation or no respiratory supportOxygen, standard care, mechanical ventilation
OutcomeReduced mortality, improved survival, reduced morbidityOutcome, mortality, morbidity, failure
  • CPAP, continuous positive airway pressure; RDS, respiratory distress syndrome.