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Table 4 Methods used to account for missing data

From: Non-compliance with randomised allocation and missing outcome data in randomised controlled trials evaluating surgical interventions: a systematic review

Missing data method

n (%) N = 52a

Complete case analysis

35 (67)

Survival type analysis

4 (8)

Baseline/last observation carried forward

4 (8)

Imputation of best case scenario

3 (6)

Imputation of best and worst case scenarios

2 (4)

Multiple imputation and mixed models

4 (8)

  1. aNumber of studies where missing data were reported; percentages do not add up to 100 because of rounding