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. 2015 Aug 24;2015(8):CD000144. doi: 10.1002/14651858.CD000144.pub3

Pearlman 1993.

Methods Quasi randomized
 (alternate month strategy)
 Single center trial
 Blinding of randomization: no
 Blinding of intervention: no
 Complete follow‐up: yes
 Blinding of outcome measurement: no
Participants Premature infants
 Respiratory distress syndrome
 Colfosceril palmitate (Exosurf Neonatal) n=64
 Beractant (Survanta) n=57
Interventions Beractant (Survanta) vs. colfosceril palmitate (Exosurf Neonatal)
Outcomes Days on assisted ventilation
 Pulmonary hemorrhage
 Mortality
 Complications of prematurity
Notes  
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) High risk Quasi randomized (alternate month strategy)
Allocation concealment (selection bias) High risk Blinding of randomization: no
Blinding (performance bias and detection bias) 
 All outcomes High risk Blinding of intervention: no
Blinding of participants and personnel (performance bias) 
 All outcomes High risk  
Blinding of outcome assessment (detection bias) 
 All outcomes High risk Blinding of outcome measurement: no
Incomplete outcome data (attrition bias) 
 All outcomes Low risk Complete follow‐up: yes
Selective reporting (reporting bias) Low risk