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Table 3 Median and interquartile range of post-bronchodilator lung function values in men using the Global Lungs Function Initiative (GLI) mixed ethnic population and Hankinson NHANES III Mexican-American reference equations (p-values calculated using Kruskal-Wallis tests)

From: Prevalence of chronic obstructive pulmonary disease and variation in risk factors across four geographically diverse resource-limited settings in Peru

  Lima (n = 492) Urban Puno (n = 250) Rural Puno (n = 240) Tumbes (n = 475) P
FEV 1 (L) 3.4 (2.9–3.7) 3.5 (3.0–4.0) 3.5 (2.9–3.9) 3.2 (2.8–3.6) <0.001
FVC (L) 4.2 (3.7–4.7) 4.4 (3.8–5.1) 4.4 (3.9–5.0) 4.0 (3.4–4.4) <0.001
FEV 1 /height 2 (L/m 2 ) 1.3 (1.1–1.4) 1.3 (1.1–1.4) 1.3 (1.1–1.5) 1.2 (1.0–1.3) <0.001
FVC/height 2 (L/m 2 ) 1.6 (1.4–1.8) 1.7 (1.5–1.9) 1.7 (1.5–1.9) 1.5 (1.3–1.6) <0.001
FEV 1 /FVC (%) 80.0 (75.4–83.4) 78.4 (74.9–82.3) 77.8 (73.6–81.0) 80.6 (77.4–84.0) <0.001
Percent Predicted FEV 1 (%)      
  GLI 117.9 (107.5–129.8) 119.9 (109.9–130.2) 121.7 (111.5–133.9) 107.7 (97.7–117.5) <0.001
  NHANES III 113.3 (102.0–124.7) 114.6 (105.2–124.2) 117.0 (106.7–129.0) 102.4 (92.6–112.0) <0.001
Percent Predicted FVC (%)      
  GLI 120.1 (108.9–130.5) 123.0 (112.8–134.3) 126.2 (114.4–139.3) 107.7 (98.3–116.0) <0.001
  NHANES III 109.7 (99.8–119.5) 112.3 (104.7–123.3) 116.1 (105.6–128.1) 98.7 (90.1–107.0) <0.001