Table 1 Demographic characteristics of the study population and nonresponders
Variables | Study population (N = 358) | Non-responders (N = 280) | |
|---|---|---|---|
Gender | Female | 227 (63%) | 127 (45%)* |
Male | 131 (37%) | 153 (55%) | |
Age (years) | Mean | 26 | 27* |
Range | 21-49 | 21-42 | |
> = 22 | 79 (22%) | 21 (7%) | |
23–26 | 188 (53%) | 128 (46%) | |
> = 27 | 91 (25%) | 131 (47%) | |
Previous research activities | 82 (23%) | Data missing | |
Previous university studies | 186 (52%) | Data missing | |
Previous university degree | 47 (13%) | Data missing | |
Type of project | Clinical | 220 (61%) | 141 (50%) |
Basic science | 80 (22%) | 81 (30%) | |
Epidemiology | 35 (10%) | 29 (10%) | |
Other | 23 (6%) | 29 (10%) |