Tee 2013

Methods	RCT Length of follow‐up: 12 months
Participants	Infected children identified by screening Mean age: 7.3 years Number analysed for primary outcome: 33 Inclusion criteria: children with confirmed Trichus trichiura in a rural school Exclusion criteria: none reported
Interventions	Single dose vs placebo Albendazole: 2 x 400 mg doses on 2 consecutive days; Placebo.
Outcomes	Mean change in height; Median change in weight; Weight‐for‐age z‐score; Height‐forage z‐score; Weight‐for‐height z‐score. Not included in review: urinary TNF‐alpha levels
Notes	Location: Sekolah Rendah Kebangsaan Tawang, Kelantan, Malaysia Community category: NA Source of funding: Universiti Sains Malaysia Short Term Grant.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Randomization software was used.
Allocation concealment (selection bias)	Unclear risk	No details reported.
Blinding (performance bias and detection bias) All outcomes	Unclear risk	For participants and assessors, no details were reported. " Both the active drug and placebo were repackaged by a pharmacist blinded to the trial groups".
Incomplete outcome data (attrition bias) All outcomes	Low risk	33/37 participants analysed for the primary outcome; reasons for loss to follow‐up unclear. Inclusion of all randomized participants (number evaluable/number randomized): 89% (33/37).
Selective reporting (reporting bias)	Low risk	All stated outcomes reported.
Other bias	Low risk	No obvious other source of bias.