Though medication-adjusted CRP was improved between 6 and 12 months for usual care , both interventions were more successful in reducing the relative risk of a high-risk CRP level of > 3 mg/L ( risk ratios of 0.72 [ 0.55 to 0.95 ] for diet versus usual care and 0.67 [ 0.50 to 0.90 ] for diet plus activity versus usual care ) .