Table 3.
Adjusted Mean SF-12 PCS Scores at Year 20 by Body Mass Index (BMI) Category Change after 20 years of Follow-up (n=2960), the CARDIA study, 1985–2006a
BMI Category Change from Baseline to Year 20 | Mean Physical Component Summary (PCS) Score (95% confidence intervals) |
---|---|
Normal - Normal (n = 765) | 52.6 (52.1, 53.1) |
Normal - Overweight (n = 827) | 51.9 (51.4, 52.5)* |
Normal - Obese (n = 372) | 50.6 (49.8, 51.3)*** |
Overweight - Overweight (n = 207) | 51.8 (50.8, 52.9) |
Overweight - Obese (n = 494) | 49.7 (49.0, 50.3)*** |
Obese - Obese (n = 295) | 47.8 (46.9, 48.6)*** |
Analysis included data from the entire cohort with the exception of 54 participants who did not increase in weight from baseline to the year 20 examination. Adjusted for race, sex, and baseline age, education, marital status, smoking status, alcohol use, total physical activity, diabetes, systolic blood pressure, antihypertensive medication use, total cholesterol, and general health status.
P <0.05,
P <0.01,
P <0.001 for comparison with the Normal-Normal group.