showed a trendP = 0.06
After adjustment in the multivariate logistic regression model, higher age remained a negative predictor of positive antibody response ( P < 0.001) and current smoking showed a trend to a negative impact ( P = 0.06).
After adjustment in the multivariate logistic regression model, higher age remained a negative predictor of positive antibody response ( P < 0.001) and current smoking showed a trend to a negative impact ( P = 0.06).