Table 5 Results longitudinal analysis for 30 % change as MID in ODI or NDI

LBP^b

Lean (reference)

36.3

–

–

Underweight

33.3

1.19 (0.68; 2.09)

0.63

Overweight

48.0

1.15 (0.99; 1.34)

0.35

Obesity class I

46.4

1.14 (0.92; 1.40)

0.25

Obesity class II–III

33.3

0.98 (0.73; 1.33)

0.91

NP

Lean (reference)

41.9

Underweight

50

1.12 (0.58–2.19)

0.73

Overweight

41.7

1.00 (0.72–1.39)

0.98

Obesity class I

57.1

1.03 (0.64–1.64)

0.91

Obesity class II–III

66.7

1.30 (0.69–2.44)

0.41