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Table 3 Time-stable predictors of trajectory class membership (n = 4952)

From: Trajectories of self-reported physical activity and predictors during the transition to old age: a 20-year cohort study of British men

  Light Stable vs. Low Decreasinga   Moderate Increasing vs. Low Decreasinga  
  OR (95% CI)b p value OR (95% CI)b p value
Socio-demographic factors
Baseline age (per year increase) 0.97 (0.95, 0.98) <0.001 0.94 (0.92, 0.96) <0.001
Occupational class
Manual (ref. non-manual) 1.10 (0.88, 1.37) 0.401 0.60 (0.48, 0.74) <0.001
Marital status
Married (ref. single) 1.41 (0.84, 2.39) 0.197 2.14 (1.22, 3.75) 0.008
Widowed/Divorced (ref. single) 1.98 (0.96, 4.08) 0.064 2.58 (1.20, 5.55) 0.015
Number of children
≥1 child (ref. no children) 1.42 (1.13, 1.78) 0.003 1.45 (1.15, 1.81) 0.001
Region
Midlands (ref. south) 0.67 (0.49, 0.92) 0.014 0.68 (0.49, 0.94) 0.018
North (ref. south) 0.71 (0.55, 0.91) 0.008 0.70 (0.55, 0.90) 0.005
Scotland (ref. south) 0.71 (0.49, 1.04) 0.076 1.25 (0.88, 1.78) 0.210
Health and Lifestyle Factors
Overweight/Obese (ref. healthy BMI) 0.79 (0.64, 0.98) 0.031 0.66 (0.54, 0.81) <0.001
Arthritis (ref. no arthritis) 0.60 (0.44, 0.83) 0.002 0.54 (0.38, 0.76) <0.001
Bronchitis (ref. no bronchitis) 0.74 (0.57, 0.97) 0.026 0.62 (0.47, 0.82) <0.001
High blood pressure (ref. normal blood pressure) 0.71 (0.52, 0.97) 0.034 0.67 (0.48, 0.92) 0.014
Suffers breathlessness (ref. no breathlessness) 0.30 (0.19, 0.48) <0.001 0.14 (0.06, 0.29) <0.001
Suffers chest pain (ref. no chest pain) 0.74 (0.48, 1.13) 0.159 0.64 (0.40, 1.02) 0.061
Current/ex-smoker (ref. non-smoker) 0.42 (0.34, 0.52) <0.001 0.31 (0.24, 0.39) <0.001
Alcohol consumption
Occasional (ref. none) 1.29 (0.83, 2.02) 0.260 1.47 (0.89, 2.43) 0.133
Light (ref. none) 1.50 (0.96, 2.35) 0.075 2.73 (1.67, 4.45) <0.001
Moderate (ref. none) 1.27 (0.81, 1.99) 0.294 2.15 (1.31, 3.53) 0.003
Heavy (ref. none) 1.55 (0.92, 2.61) 0.099 2.30 (1.30, 4.07) 0.004
Dietary habits
Occasional breakfast cereal (ref. none) 2.13 (1.49, 3.05) <0.001 2.13 (1.50, 3.03) <0.001
Regular breakfast cereal (ref. none) 1.57 (1.25, 1.98) <0.001 1.66 (1.32, 2.08) <0.001
  1. aLow decreasing (reference group). bModels adjusted for employment status and number of CVD diagnoses as time-varying covariates, and occupational class, marital status, number of children, region, BMI, arthritis, bronchitis, blood pressure, breathlessness, chest pain, smoking status, alcohol consumption and breakfast consumption at baseline