text_1: High levels of CRP reduces the risk of exacerbations in chronic obstructive pulmonary disease (COPD).
text_2: The addition of inflammatory biomarkers to a basic model including age, sex, FEV1 percent predicted, smoking, use of any inhaled medication, body mass index, history of previous exacerbations, and time since most recent prior exacerbation improved the C statistics from 0.71 to 0.73 (comparison: P = 9 × 10(-5)).