Figure 3.

Lung function at baseline, 12 months, and 24 months by past severe LRTI status in the adolescents with human immunodeficiency virus infection (showing FVC [A] and FEV₁ [B] z scores). P values calculated from two-sample independent t test. Missing LRTI data: 29 (5.8%) at baseline, 26 (5.5%) at 12 months, 23 (5.3%) at 24 months. Abbreviations: FEV₁, forced expiratory volume in 1 second; FVC, forced vital capacity; lb/ub, lower 95% confidence interval /upper 95% confidence interval; LRTI, lower respiratory tract infection.