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Predicted probability of subsequent childhood wheeze by urine CC16 at the time of an infant LRTI. The solid black line represents the predicted probability values, and the shaded gray bands represent the lower and upper 95% confidence intervals. These estimates were obtained from a logistic regression model adjusted for infant's age, sex, and current exposure to second-hand smoking. CC16, club cell 16-kDa secretory protein; LRTI, lower respiratory tract infection.
