Table 1.
Demographic characteristics of participants from time point 1 only, and longitudinal participants
| Score | ||||
|---|---|---|---|---|
| Variable | Statistics | Time point 1 only | Longitudinal | Statistical comparison |
| Age (time point 1 only n = 3365, longitudinal n = 585), years | Mean (s.d.) | 43.56 (10.54) | 44.56 (10.67) | t (3820) = −0.76, P = 0.967 |
| Gender (time point 1 only n = 3369, longitudinal n = 584) | ||||
| Male | Frequency (%) | 589 (17%) | 102 (17%) | χ2(1) = 0.00, P = 0.992 |
| Female | Frequency (%) | 2780 (83%) | 482 (83%) | |
| Occupation (time point 1 only n = 3377, longitudinal n = 585) | ||||
| Nursing and midwifery | Frequency (%) | 824 (24%) | 100 (17%) | χ2(5) = 42.02, P < 0.001 |
| Administrative and clerical | Frequency (%) | 903 (27%) | 195 (33%) | |
| Medical | Frequency (%) | 212 (6%) | 36 (6%) | |
| Professional and technical | Frequency (%) | 651 (19%) | 155 (26%) | |
| Social services | Frequency (%) | 497 (15%) | 68 (12%) | |
| Other | Frequency (%) | 290 (9%) | 31 (5%) | |
For the longitudinal sample, time point 2 data for gender and occupation were used if time point 1 data were missing.