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Table 2 Characteristics of participants according to PA levels and BMI

From: Association between objectively measured physical activity and body mass index with low back pain: a large-scale cross-sectional study of Japanese men

Obesity status

Normal weight (BMI < 25)

Overweight/Obese (BMI ≥ 25)

Physical activity levels

High

Middle

Low

High

Middle

Low

N

935

927

906

402

416

436

Persistent low back pain (%)

7.9

11.4

10.3

10.2

13.0

13.8

Age, years

47 (10)

46 (10)

47 (10)

49 (9)

47 (9)

49 (9)

BMI, kg/m2

22.1 (1.8)

22.3 (1.7)

22.2 (1.8)

27.4 (2.3)

27.2 (2.2)

27.7 (3.0)

Physical activity, minutes/day

62.9 (14.0)

41.4 (4.3)

24.2 (7.3)

62.6 (13.3)

41.5 (4.5)

23.4 (7.4)

Drinkers (%)

85.5

84.6

86.1

86.3

88.2

82.8

Smokers (%)

32.7

34.8

39.4

33.6

39.2

43.1

Hypertension (%)

12.9

9.0

15.8

26.6

30.3

27.1

Dyslipidemia (%)

6.6

5.0

7.5

14.2

15.4

14.2

Diabetes (%)

3.5

3.9

3.0

11.2

8.2

9.6

  1. Data are means (SD) or %
  2. BMI Body mass index, SD Standard deviation