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Summary of RCTs assessing patient preference
| Study (Author, Year) | Proportion of Patients with a Preference (# [%]) | ||
| PDA | Paper | No Preference | |
| Drummond HE et al., 1995 39 | 26/46 (57) | 6/46 (13) | 14/46 (30) |
| Tiplady B et al., 1997 38 | 13/22 (59) | 4/22 (18) | 5/22 (23) |
| Stratton RJ et al., 1998 37 | 5/13 (38) | 7/13 (54) | 1/13 (8) |
| Walker I et al.,2004 Arnold E et al., 2005 32 (Follow-up qualitative study) |
10/10 (100) | 0/10 (0) | 0/10 (0) |
