Table 2.
Characteristic of patients and controls at the time of inclusion.Proportions of doubtful and definite cases of HAD-A and HAD-D, according to the cut-off values suggested by Zigmond & Snaith (1983)
| Patients, n = 200 | Controls, n = 117 | p for difference | |
|---|---|---|---|
| Age years – Mean (s.d.) | 45.4 (8.6) | 45.2 (7.0) | 0.836 |
| Range years | 25 - 64 | 25 - 55 | - |
| Women, n (%) | 176 (88.0) | 79 (67.5) | 0.050 |
| Educational level: | |||
| Compulsory school, n (%) | 9 (4.5) | 6 (5.1) | 0.804 |
| Upper secondary school, n (%) | 62 (31.0) | 36 (30.8) | 0.972 |
| University, n (%) | 127 (63.5) | 75 (64.1) | 0.948 |
| Data not available, n (%) | 2 (1.0) | - | - |
| Sick-leave at inclusion: | n = 197 | n = 117 | |
| Full-time, n (%) | 132 (67.0) | - | - |
| Sick leave 25 – 75%, n (%) | 63 (32.0) | - | - |
| Sick leave 0%, n (%) | 2 (1.0) | 117 (100.0) | < 0.001 |
| HAD, subscale Anxiety | n = 194 | n = 117 | |
| Individuals scoring ≥ 8 and ≤ 10, n (%) | 50 (25.8) | 5 (4.3) | < 0.001 |
| Individuals scoring ≥ 11, n (%) | 105 (54.1) | 2 (1.7) | < 0.001 |
| HAD, subscale Depression | n = 194 | n = 117 | |
| Individuals scoring ≥ 8 and ≤ 10, n (%) | 69 (35.6) | 5 (4.3) | < 0.001 |
| Individuals scoring ≥ 11, n (%) | 89 (45.9) | 0 (0.0) | < 0.001 |