Signalling questions		Response options
3.1 Were data for this outcome available for all, or nearly all, participants randomized?
3.2 If N/PN/NI to 3.1: Is there evidence that result was not biased by missing outcome data?
3.3 If N/PN to 3.2: Could missingness in the outcome depend on its true value?
3.4 If Y/PY/NI to 3.3: Do the proportions of missing outcome data differ between intervention groups?
3.5 If Y/PY/NI to 3.3: Is it likely that missingness in the outcome depended on its true value?
Risk‐of‐bias judgement		Low/High/Some concerns
Optional: What is the predicted direction of bias due to missing outcome data?		Favours experimental / Favours comparator/Towards null /Away from null/Unpredictable