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| Participation in follow-up | |||
|---|---|---|---|
| Participation in trial completion examination | Yes | No | p |
| Yes | 236 (66) | 123 (34) | <0.001 |
| No | 23 (32) | 50 (68) | |
Data are: number (row percentage). Pvalue was calculated on the sample of subjects contributors to the multiple imputation analysis (N = 432; see Fig 1), using Chi-square test (1 df).
