Table 2 Baseline characteristics categorized by level of leisure-time physical activity
Variables | No/irregular LPAa | Moderate LPAb | Vigorous LPAc | All |
|---|---|---|---|---|
All, n (%) | 350 (24) | 808 (55) | 306 (21) | 1 464 (100) |
Sex, n (%) | ||||
Male | 103 (29) | 206 (25) | 123 (40) | 432 (30) |
Female | 247 (71) | 602 (75) | 183 (60) | 1 032 (70) |
Age, mean years ± SD | 42.2 ± 13.0 | 38.4 ± 12.4 | 35.1 ± 11.6 | 38.6 ± 12.6 |
Level of education, n (%) | ||||
Elementary (1-9 y) | 32 (9) | 38 (5) | 17 (5) | 87 (6) |
Secondary (10-12 y) | 144 (41) | 285 (35) | 103 (34) | 532 (36) |
University (13-16 y) | 152 (43) | 389 (48) | 146 (48) | 687 (47) |
Higher academic education (>16 y) | 22 (7) | 96 (12) | 40 (13) | 158 (11) |
Body mass index, n (%) | ||||
<18.5 | 6 (2) | 9 (1) | 3 (1) | 18 (1) |
18.5-24.9 | 206 (59) | 504 (63) | 201 (66) | 911 (63) |
25-30 | 99 (28) | 211 (26) | 87 (28) | 397 (27) |
>30 | 38 (11) | 80 (10) | 15 (5) | 133 (9) |
Daily smoking, n (%) | ||||
Yes | 69 (20) | 108 (13) | 42 (14) | 219 (15) |
No | 281 (80) | 700 (87) | 264 (86) | 1 245 (85) |
Pain duration this episode, n (%) | ||||
<1 month | 103 (30) | 280 (35) | 134 (44) | 517 (36) |
1-3 months | 56 (15) | 151 (19) | 56 (18) | 263 (18) |
4-6 months | 30 (9) | 63 (7) | 27 (9) | 120 (8) |
> 6 months | 160 (46) | 313 (39) | 89 (29) | 562 (38) |
Previous episodes of pain, n (%) | ||||
Yes | 287 (82) | 649 (80) | 233 (76) | 1 169 (80) |
No | 63 (18) | 159 (20) | 73 (24) | 295 (20) |
Pain location, n (%) | ||||
Neck | 203 (58) | 456 (57) | 147 (48) | 806 (55) |
Back | 114 (33) | 282 (35) | 130 (43) | 526 (36) |
Neck and back | 31 (9) | 70 (8) | 27 (9) | 128 (9) |
Pain intensity, mean score ± SDd | 5.6 ± 1.7 | 5.5 ± 1.6 | 5.4 ± 1.7 | |
Pain related disability, mean score ± SDd | 2.7 ± 2.3 | 2.7 ± 2.2 | 2.4 ± 2.2 | |