Sternberg 1997 (Screened).

Methods	RCT Length of follow‐up: 2.3 months (10 weeks)
Participants	Infected children identified by screening Number analysed for primary outcome: 133 Age range/mean age: 10.25 years Inclusion criteria: children in Grades 4 and 5 in nine primary schools in central Jamaica with mild to‐moderate infections of T. Trichiura (> 1200 eggs per g of stool) Exclusion criteria: none reported
Interventions	Single dose vs placebo Albendazole: 400 mg daily for 2 days Placebo: identical
Outcomes	Cognitive tests: two tests of perceptual speed; motor speed using grooved pegboard test‐dominant/nondominant hand; memory using free recall, digit span forward/backwards; reasoning using verbal analogies and figural series completions. Not included in the review: stool egg counts at baseline and 10 weeks; socioeconomic status. Outcomes not reported: height, weight and BMI (measured at baseline and end of study, only reported at baseline).
Notes	Location: Jamaica Burden: high There was an infected placebo group and an quote: "uninfected control group" Source of funding: James S. McDonnell Foundation.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: “The infected children were paired by sex within each class. If no match was available within the same class, then a child from the same grade of the school was chosen. The children in each pair were then randomly assigned to either treatment or placebo group.”
Allocation concealment (selection bias)	Unclear risk	No details reported.
Blinding (performance bias and detection bias) All outcomes	Low risk	Quote: “control groups received inert placebo tablets, which looked identical to the albendazole ones” Quote: “These tests were administered individually in the order in which they are listed above by one of two testers, who was unaware of the child's group assignment.”
Incomplete outcome data (attrition bias) All outcomes	Low risk	No children were lost to follow‐up. Inclusion of all randomized participants (number evaluable/number randomized): 100% (133/133).
Selective reporting (reporting bias)	High risk	Quote: “All children had their heights and weights measured on enrollment and at the end of the study.” Height and weight only reported at baseline.
Other bias	Low risk	No other obvious source of bias.