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Table 1 Proportion of missing data within the 61 studies with QoL outcomes

From: A review of RCTs in four medical journals to assess the use of imputation to overcome missing data in quality of life outcomes

  Number of Studies
Proportion of
missing data
No imputation Imputation Total
None 6 0 6
< 10% 16 5 21
11–20% 6 5 11
>20% 8 3 11
Unclear 6 6 12
Total 42 19 61