Table 4.
Baseline characteristics—as-treated analysis.
| Variable | Nonusers (n=430) |
Users (n=141) |
t 569 | χ2 1 | P | |
| Age (years), mean (SD) | 53.5 (8.6) | 52.2 (8.4) | –1.56 |
|
.12 | |
| Sex, n (%) |
|
|
|
|
|
|
|
|
Female | 217 (50.5) | 75 (53.2) |
|
|
|
|
|
Male | 213 (49.5) | 66 (46.8) |
|
0.3 | .57 |
| Indication, n (%) |
|
|
|
|
|
|
|
|
Coronary heart disease | 165 (38.4) | 49 (34.8) |
|
|
|
|
|
Chronic back pain | 265 (61.6) | 92 (65.2) |
|
0.6 | .44 |
| Education, n (%) |
|
|
|
|
|
|
|
|
≤10 years of school | 317 (73.7) | 92 (65.2) |
|
|
|
|
|
>10 years of school | 113 (26.3) | 49 (34.8) |
|
3.9 | .049 |
| Net equivalent income per month (€), mean (SD) | 1667 (626) | 1780 (622) | –1.81 |
|
.07 | |
| BMI (kg/m2), mean (SD) | 27.9 (5.1) | 28.8 (5.5) | 1.72 |
|
.09 | |
| Frequency of doing exercise, (scale 0-10), mean (SD) | 4.09 (2.89) | 3.98 (2.74) | –0.38 |
|
.71 | |
| Attention paid to a healthy diet (scale 0-10), mean (SD) | 5.59 (2.45) | 5.62 (2.54) | 0.14 |
|
.89 | |