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Table 2 Spirometry characteristics of study participants.

From: Cross sectional analysis of respiratory symptoms in an injection drug user cohort: the impact of obstructive lung disease and HIV

  OLD- OLD+  
  HIV- HIV+ HIV- HIV+ P-value*
FEV1/FVC 79.2 (4.83) 79.8 (5.44) 63.4 (6.75) 61.2 (7.95) <0.01
FEV1      
   Absolute (L) 2.93 (0.75) 2.80 (0.66) 2.36 (0.84) 1.97 (0.73) <0.01
   % Predicted 95.9 (15.3) 95.0 (15.2) 73.8 (18.2) 66.4 (19.7) <0.01
FVC      
   Absolute (L) 3.71 (0.96) 3.53 (0.86) 3.69 (1.17) 3.17 (1.01) <0.01
   % Predicted 97.5 (15.8) 96.2 (15.8) 92.3 (18.9) 86.1 (20.5) <0.01
  1. *P-value represents test for overall difference across means. Values presented as mean (S.D.) OLD = Obstructive lung disease; HIV = human immunodeficiency virus; FEV1 = Forced expiratory volume in 1 sec; FVC = Forced vital capacity;