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Table 2 Fifteen-year reproducibility of self-rated physical activity levels in adolescence and early adulthood between baseline and historical recall (n = 3,565)

From: Reproducibility of physical activity recall over fifteen years: longitudinal evidence from the CARDIA study

Self-rated physical activity

Baseline physical activitya

Historical physical activitya

Current physical activitya

Percent agreement

Weighted kappa

Before high school

     

  Inactive

145 (4.1%)

87 (2.4%)

 

45.4%

0.32

  Somewhat Active

264 (7.4%)

229 (6.4%)

   

  Moderately Active

1103 (30.9%)

904 (25.4%)

  Active

722 (20.3%)

657 (18.4%)

  Very active

1330 (37.3%)

1687 (47.3%)

  Missing

1

1

During high school

     

  Inactive

93 (2.6%)

58 (1.6%)

 

51.4%

0.43

  Somewhat Active

266 (7.5%)

242 (6.8%)

  

  Moderately active

1021 (28.6%)

804 (22.6%)

  Active

816 (22.9%)

729 (20.4%)

  Very active

1369 (38.4%)

1732 (48.6%)

At baseline

     

  Inactive

244 (6.9%)

82 (2.3%)

228 (6.4%)

32.3% b

0.21 b

  Somewhat Active

517 (14.5%)

228 (6.4%)

607 (17.0%)

27.8% c

0.12 c

  Moderately Active

1377 (38.6%)

951 (26.7%)

1581 (44.4%)

  Active

792 (22.2%)

870 (24.4%)

614 (17.2%)

  Very active

633 (17.8%)

1432 (40.2%)

534 (15.0%)

  Missing

2

2

1

  
  1. a Baseline Physical Activity = Activity reported at Year 0; Historical Physical Activity = Recalled Baseline Activity reported at Year 15; Current Physical Activity = Activity reported at Year 15.
  2. b Percent agreement and weighted kappa for Baseline and Historical Physical Activity;
  3. c Percent agreement and weighted kappa for Historical and Current Physical Activity.