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. 2020 Mar 16;19:100237. doi: 10.1016/j.ensci.2020.100237

Table 3.

Summary of quality analysis of content development for 24 ULF-PROs.

Quality rating Quality criteria assessed
[Q1] COI [Q2] Conceptual framework [Q3] Target population [Q4] COU [Q5] Representative sample [Q6] Qualitative items [Q6a] Literature items
Good (+) 1 (4.2%) 0 (0%) 4 (16.7%) 1 (4.2%) 0 (0%) 1 (4.2%) 1 (4.2%)
Adequate (+?) 17 (70%) 2 (8.3%) 13 (54.2%) 9 (37.5%) 2 (8.3%) 1 (4.2%) 2 (8.3%)
Doubtful (−?) 3 (12.5%) 9 (37.5%) 2 (8.3%) 12 (50%) 7 (29.2%) 4 (16.7%) 4 (16.7%)
Poor/none (−) 3 (12.5%) 13 (54.2%) 5 (20.8%) 2 (8.3%) 15 (62.5%) 18 (75%) 17 (70.8%)

Each column is the number (percent) of sum of PROs scored for each of the seven quality criteria (see Table 1 and methods), according to the ratings. COI = concept of interest; COU = context of use.