From: Pregnancy related back pain, is it related to aerobic fitness? A longitudinal cohort study
Characteristic | n | Mean or proportion |
---|---|---|
Absolute , early pregnancy (L/min) | 520 | 2.4 (0.5) |
Physical activity ≥ once a week (%) | 259/520 | 49.8 |
Previous back pain, irrespective of pregnancy (%) | 238/520 | 45.8 |
Sick-leave due to back pain before pregnancy (%) | 43/520 | 8.3 |
No previous pregnancy (%) | 218/520 | 41.9 |
No previous delivery (%) | 258/520 | 49.6 |
Age (yr) | 520 | 29.0 (4.4) |
Weight, gestational week 12 (kg) | 520 | 68.1 (12.6) |
Height (m) | 520 | 1.67 (0.06) |
University education (%) | 520 | 43.9 |
Current smoker (%) | 520 | 18.5 |
Back pain location throughout present pregnancy: | ||
Cervico-thoracic (%) | 69/459 | 15.0 |
Lumbar (%) | 67/459 | 14.6 |
Lumbosacral (%) | 274/471 | 58.2 |
Sacral (%) | 253/469 | 53.9 |
Any back pain location (%) | 373/479 | 77.9 |
Back pain of any location postpartum (%) | 179/488 | 36.7 |
Back pain intensity (mm) | ||
Gestational week 24 | 498 | 33.7 (31.5) |
Gestational week 30 | 497 | 38.0 (31.3) |
Gestational week 36 | 455 | 39.2 (32.0) |
Post partum week 22 | 488 | 18.3 (26.8) |