Table 2

Association of potential risk factors for physical activity and sitting time

FactorsOR (95% CI)
Physical activitySitting time per day
Moderate*Moderate†Light*Light†>7.5 hours*>7.5 hours†
Age (years)
 18-1.001.001.001.001.001.00
 30-0.67 (0.56 to 0.81)0.70 (0.58 to 0.85)0.58 (0.48 to 0.70)0.63 (0.51 to 0.76)0.99 (0.85 to 1.14)1.04 (0.89 to 1.22)
 40-0.49 (0.41 to 0.57)0.52 (0.44 to 0.62)0.42 (0.36 to 0.50)0.47 (0.39 to 0.56)0.91 (0.79 to 1.04)0.98 (0.85 to 1.13)
 50-0.48 (0.41 to 0.57)0.52 (0.44 to 0.61)0.36 (0.30 to 0.42)0.39 (0.33 to 0.47)0.87 (0.76 to 0.99)0.94 (0.82 to 1.09)
 60-0.45 (0.38 to 0.52)0.51 (0.43 to 0.61)0.46 (0.39 to 0.54)0.51 (0.43 to 0.62)0.89 (0.78 to 1.02)0.89 (0.77 to 1.02)
 70–790.62 (0.52 to 0.74)0.72 (0.60 to 0.87)1.13 (0.95 to 1.35)1.17 (0.97 to 1.42)1.34 (1.17 to 1.54)1.08 (0.93 to 1.26)
Gender
 Female1.001.001.001.001.001.00
 Male0.44 (0.42 to 0.46)0.46 (0.43 to 0.50)0.83 (0.79 to 0.88)0.76 (0.70 to 0.83)1.30 (1.24 to 1.36)1.25 (1.16 to 1.35)
Education
 ≤ Primary school1.001.001.001.001.001.00
 ≥ Junior middle school1.01 (0.96 to 1.06)1.07 (1.01 to 1.14)0.97 (0.92 to 1.02)1.27 (1.20 to 1.35)0.92 (0.88 to 0.97)0.85 (0.81 to 0.90)
Marital status
 Married/cohabiting1.001.001.001.001.001.00
 Divorced/widowed/unmarried1.22 (1.12 to 1.33)1.15 (1.05 to 1.26)1.62 (1.49 to 1.77)1.19 (1.09 to 1.31)1.20 (1.11 to 1.28)1.08 (1.00 to 1.17)
Per capita monthly income
 <RMB5001.001.001.001.001.001.00
 RMB500-1.15 (1.08 to 1.22)1.16 (1.09 to 1.23)0.94 (0.88 to 1.00)1.08 (1.01 to 1.15)0.75 (0.71 to 0.80)0.79 (0.75 to 0.84)
 ≥RMB10001.16 (1.09 to 1.23)1.13 (1.06 to 1.21)0.88 (0.83 to 0.94)1.00 (0.93 to 1.07)0.96 (0.91 to 1.02)1.01 (0.95 to 1.07)
Smoking
 Never1.001.001.001.001.001.00
 Light0.52 (0.46 to 0.58)0.57 (0.51 to 0.64)0.84 (0.75 to 0.93)0.79 (0.70 to 0.89)1.04 (0.93 to 1.16)0.88 (0.78 to 0.99)
 Moderate0.52 (0.46 to 0.59)0.61 (0.54 to 0.69)0.86 (0.77 to 0.97)0.85 (0.75 to 0.97)1.21 (1.07 to 1.36)1.02 (0.90 to 1.16)
 Heavy0.47 (0.44 to 0.51)0.57 (0.52 to 0.61)0.87 (0.81 to 0.92)0.83 (0.77 to 0.90)1.41 (1.33 to 1.51)1.20 (1.10 to 1.31)
Drinking,
 Never1.001.001.001.001.001.00
 Light0.50 (0.46 to 0.54)0.64 (0.59 to 0.69)0.76 (0.71 to 0.81)0.80 (0.74 to 0.87)1.19 (1.10 to 1.28)0.98 (0.90 to 1.06)
 Moderate0.54 (0.48 to 0.61)0.71 (0.63 to 0.81)0.82 (0.73 to 0.91)0.93 (0.82 to 1.05)1.08 (0.96 to 1.22)0.82 (0.72 to 0.92)
 Heavy0.51 (0.44 to 0.58)0.70 (0.61 to 0.81)1.01 (0.89 to 1.13)1.10 (0.96 to 1.27)1.31 (1.16 to 1.48)1.06 (0.93 to 1.21)
Dietary habits
 Meat and poultry1.04 (1.02 to 1.06)1.08 (1.06 to 1.10)0.93 (0.91 to 0.95)1.01 (0.99 to 1.04)1.01 (0.99 to 1.03)0.95 (0.93 to 0.97)
 Fishery products1.16 (0.99 to 1.34)0.97 (0.82 to 1.16)0.61 (0.52 to 0.72)0.76 (0.63 to 0.93)2.16 (1.86 to 2.52)2.21 (1.87 to 2.60)
 Vegetables and fruits1.01 (1.01 to 1.01)1.01 (1.00 to 1.01)0.97 (0.97 to 0.97)0.96 (0.96 to 0.97)1.04 (1.03 to 1.04)1.05 (1.04 to 1.05)
 Soy products0.91 (0.88 to 0.94)0.88 (0.85 to 0.92)0.74 (0.71 to 0.77)0.81 (0.78 to 0.85)0.91 (0.87 to 0.95)0.91 (0.88 to 0.95)
Sitting time per day
 ≤7.5 hours1.001.001.001.00
 >7.5 hours1.34 (1.25 to 1.42)1.35 (1.27 to 1.44)3.68 (3.47 to 3.91)4.09 (3.84 to 4.36)
Physical activity
 Vigorous1.001.00
 Moderate1.34 (1.25 to 1.42)1.37 (1.28 to 1.46)
 Light3.68 (3.47 to 3.91)4.08 (3.83 to 4.34)
  • *Was a crude model;.

  • †Was a full model: adjusted for age, gender, education, marital status, per capita monthly income, smoking, drinking and dietary habits.