Table 1

Participant characteristics (total sample, n=2333; LBP sufferers, n=1660)

Characteristicn (%)*
Total sampleLBP sufferers
Age
 18–44 years896 (38)598 (36)
 45–64 years1153 (49)860 (52)
 65+ years284 (12)202 (12)
Sex
 Female1731 (74)1225 (74)
 Male602 (26)435 (26)
Body mass index
 Underweight (<18.5 kg/m2)44 (2)28 (2)
 ‘Normal’ weight (18.5 to <25 kg/m2)1309 (56)898 (54)
 Overweight or obesity (≥25 kg/m2)980 (42)734 (44)
Smoking status
 Smoker404 (17)296 (18)
 Non-smoker1929 (83)1364 (82)
Experiencing stress
 Occasionally, very rarely or never1505 (65)1033 (62)
 Often or every day828 (35)627 (38)
Education
 Primary or secondary education687 (30)529 (32)
 Higher education1646 (70)1131 (68)
Socioeconomic status
 Low or very low236 (10)189 (11)
 Middle1820 (78)1299 (78)
 High or very high277 (12)172 (10)
LBP occurrence in the past year
 Yes1600 (71)1660 (100)
 No733 (29)0 (0)
Frequency of experiencing LBP
 1–7 days/760 (46)
 8–30 days/451 (27)
 31–90 days/146 (9)
 90+ days, but not every day/203 (12)
 Every day/100 (6)
Intensity of LBPM (IQR)
 Average intensity/30 (19, 49)
24-hour movement behavioursg (%)
 MVPA (min/day)27 (2)27 (2)
 LPA (min/day)499 (35)502 (35)
 SB (min/day)440 (31)438 (30)
 Sleep (min/day)474 (33)473 (33)
  • *Absolute frequency (percentage).

  • †Median (IQR).

  • ‡Compositional mean (percent of the day).

  • LBP, low back pain; LPA, light-intensity physical activity; MVPA, moderate- to vigorous-intensity physical activity; SB, sedentary behaviour.