Ittman 1992 (<1250g).

Methods	Blinding of randomisation: yes Blinding of intervention: can't tell but probably impossible Complete follow‐up: yes Blinding of outcome measurement: can't tell
Participants	Premature infants <1250g. Haemolysis permitted. Initiation of phototherapy determined by physician. Fibreoptic n=10, conventional n=9.
Interventions	Fibreoptic: BiliBlanket at 35 microwatts/cm2/nm (set). Conventional: Halogen spotlight (blue).
Outcomes	Duration of phototherapy. Use of exchange transfusion. Use of additional phototherapy.
Notes	Further data awaited
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Low risk	A ‐ Adequate