Table 2 Self-reported non response-reasons in an observational research bronchoscopy study
Reasons | Non-responders | Study category | ||||
|---|---|---|---|---|---|---|
Initial, n = 139 Frequency (%) | Late, n = 88 Frequency (%) | p | Controls, n = 84 Frequency (%) | OLD, n = 143 Frequency (%) | p | |
Discomfort | 33 (23.7) | 16 (18.2) | 0.3 | 19 (22.6) | 30 (21.0) | 0.2 |
Unspecified worries/fear concerning participation | 23 (16.5) | 30 (34.1) | < 0.01 | 19 (22.6) | 34 (23.8) | 0.08 |
Disease/health issues | 24 (17.3) | 23 (26.1) | 0.1 | 8 (9.5) | 39 (27.3) | < 0.01 |
Study fatigue | 14 (10.1) | 2 (2.3) | 0.03 | 5 (6.0) | 11 (7.7) | 0.2 |
Time constraint | 5 (3.6) | 5 (5.7) | 0.5 | 7 (8.3) | 3 (2.1) | 0.2 |
Practicala | 5 (3.6) | 6 (6.8) | 0.3 | 5 (6.0) | 6 (4.2) | 0.9 |
Not satisfied with previous study participation | 2 (1.4) | 0 | 0.5 | 0 | 2 (1.4) | 0.5 |
Feeling too old | 2 (1.4) | 0 | 0.5 | 2 (2.4) | 0 | 0.2 |
Refuse to specify | 1 (0.7) | 0 | 1.0 | 1 (1.2) | 0 | 0.5 |
Personal reason | 0 | 3 (3.4) | 0.06 | 1 (1.2) | 2 (1.4) | 1.0 |
Not specified | 30 (21.6) | 3 (3.4) | < 0.01 | 17 (20.2) | 16 (11.2) | 0.7 |