Hester 1992 o‐c‐o.

Methods	Same as Hester 1992 o‐c
Participants	Same as Hester 1992 o‐c
Interventions	Intervention group 2: double gloving plus one cotton glove (outer standard latex, middle Protek cotton, inner orthopaedic glove) Control group was double gloving including one thicker glove (latex inner, orthopaedic glove outer layer)
Outcomes	Same as Hester 1992 o‐c
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation	High risk	Same as Hester 1992 o‐c
Allocation concealment	High risk	—
Blinding of study subjects	Low risk	—
Blinding of outcome assessor	Unclear risk	—
Incomplete outcome data (attrition bias)	Unclear risk	—
Selective outcome reporting (reporting bias)	Low risk	—
Outcome measure (combined air and water test used?)	High risk	—