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. 2013 Jun 4;2013(6):CD004874. doi: 10.1002/14651858.CD004874.pub4

Campbell 1988.

Methods RCT comparing co‐trimoxazole for 5 days and procaine penicillin single dose with ampicillin for 5 days
Participants Children 1 month to 4 years of age with non‐severe pneumonia
Interventions Daily co‐trimoxazole PO for 5 days or single‐dose procaine penicillin with daily PO ampicillin
Outcomes Cure rate, hospitalisation rate and death rate
Notes Exclusion criteria: very severe disease, refusal of consent, unable to take tablets
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Sequence generation and randomisation not clear
Allocation concealment (selection bias) High risk Eligible children were allocated sequentially to 2 treatment groups by study physician
Blinding of participants and personnel (performance bias) 
 All outcomes High risk Open‐label study
Blinding of outcome assessment (detection bias) 
 All outcomes High risk Open‐label study
Selective reporting (reporting bias) Unclear risk Data not recorded clearly
Incomplete outcome data (attrition bias) 
 All outcomes Unclear risk Data not recorded clearly
Other bias Unclear risk Source of funding not mentioned