Table 2 Multivariate model analysis of exercise and FD

Exercise days per week, days

0.85 (0.74, 0.99),

P = 0.0397

0.91 (0.78, 1.07),

P = 0.2416

0.90 (0.76, 1.07),

P = 0.2277

0.93 (0.79, 1.10),

P = 0.4200

0.93 (0.78, 1.12),

P = 0.4381

Each exercise time

 0

1.0

1.0

1.0

1.0

1.0

 0< ≤0.5 h

0.21 (0.05, 0.92),

P = 0.0379

0.26 (0.06, 1.22),

P = 0.0886

0.24 (0.04, 1.42),

P = 0.1155

0.41 (0.08, 2.22),

P = 0.3025

0.45 (0.06, 3.43),

P = 0.4391

 0.5 h< ≤1 h

0.13 (0.05, 0.39),

P = 0.0003

0.18 (0.06, 0.55),

P = 0.0027

0.19 (0.05, 0.66),

P = 0.0088

0.27 (0.07, 1.05),

P = 0.0581

0.36 (0.07, 1.75),

P = 0.2048

 1 h< ≤2 h

0.06 (0.02, 0.18),

P<0.0001

0.08 (0.02, 0.26),

P<0.0001

0.08 (0.02, 0.30),

P = 0.0002

0.12 (0.03, 0.49),

P = 0.0028

0.15 (0.03, 0.77),

P = 0.0230

 > 2 h

0.12 (0.04, 0.37),

P = 0.0002

0.19 (0.06, 0.61),

P = 0.0050

0.20 (0.06, 0.73),

P = 0.0149

0.26 (0.07, 1.03),

P = 0.0553

0.34 (0.07, 1.70),

P = 0.1889

Exercise intensity

 no exercise

1.0

1.0

1.0

1.0

1.0

 Mild intensity

0.03 (0.01, 0.15),

P<0.0001

0.04 (0.01, 0.22),

P = 0.0002

0.05 (0.01, 0.30),

P = 0.0011

0.06 (0.01, 0.39),

P = 0.0031

0.09 (0.01, 0.71),

P = 0.0220

 Moderate intensity

0.10 (0.04, 0.27),

P<0.0001

0.13 (0.05, 0.40),

P = 0.0003

0.15 (0.05, 0.51),

P = 0.0021

0.21 (0.06, 0.75),

P = 0.0166

0.29 (0.06, 1.34),

P = 0.1129

 High intensity

0.17 (0.06, 0.49),

P = 0.0012

0.22 (0.07, 0.69),

P = 0.0091

0.18 (0.05, 0.66),

P = 0.0094

0.33 (0.09, 1.24),

P = 0.0995

0.32 (0.06, 1.59),

P = 0.1614