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Table 3 Stability (Kappa statistics and intra class correlation coefficients [ICC]) of sport and exercise type participation across 4 wavesa, n = 3384 men

From: Tracking of sport and exercise types from midlife to old age: a 20-year cohort study of British men

  Random Effects Models
Sport/exercise type Wave 1 to 2 Wave 1 to 3 Wave 1 to 4 Univariate Multivariateb
  Kappa Kappa Kappa ICC (95% CI) ICC (95% CI)
Golf 0.60 0.57 0.55 0.93 (0.92, 0.93) 0.89 (0.88, 0.90)
Bowling 0.28 0.22 0.23 0.85 (0.84, 0.86) 0.85 (0.84, 0.86)
Dancing 0.29 0.24 0.17 0.71 (0.67, 0.74) 0.80 (0.76, 0.83)
Racquet sports 0.34 0.23 0.22 0.72 (0.69, 0.75) 0.72 (0.66, 0.77)
Swimming 0.17 0.15 0.16 0.65 (0.62, 0.69) 0.64 (0.61, 0.68)
Cycling (any purpose) 0.30 0.23 0.15 0.65 (0.61, 0.68) 0.64 (0.60, 0.68)
Surface water sports 0.34 0.16 0.13 0.79 (0.75, 0.82) 0.70 (0.65, 0.74)
Aerobics/fitness training 0.07 0.06 0.03 0.67 (0.60, 0.74) 0.63 (0.54, 0.72)
Gym/muscle strengthening 0.12 0.13 0.06 0.74 (0.68, 0.80) 0.70 (0.62, 0.78)
Football 0.07 0.00 0.00 0.67 (0.55, 0.77) 0.66 (0.52, 0.78)
Rugby 0.00 0.00 0.00 c c
Running/jogging 0.26 0.24 0.24 0.78 (0.74, 0.81) 0.77 (0.65, 0.86)
Cricket 0.19 0.10 0.10 0.73 (0.67, 0.79) 0.71 (0.60, 0.79)
Walking/hiking 0.08 0.09 0.10 0.58 (0.53, 0.63) 0.56 (0.51, 0.61)
Other 0.25 0.15 0.12 0.67 (0.60, 0.74) 0.65 (0.57, 0.72)
  1. awave 1 = baseline, wave 2 = 12-year follow up, wave 3 = 16-year follow up, wave 4 = 20-year follow up
  2. badjusted for age, BMI, social class, smoking status at baseline and season
  3. cModels failed to converge