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Table 4 Median and interquartile range of post-bronchodilator lung function values in women 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 = 506) Urban Puno (n = 257) Rural Puno (n = 266) Tumbes (n = 471) P
FEV 1 (L) 2.3 (2.0–2.6) 2.4 (2.0–2.8) 2.4 (2.0–2.8) 2.2 (1.9–2.5) <0.001
FVC (L) 2.8 (2.4–3.2) 3.0 (2.5–3.5) 3.0 (2.5–3.5) 2.6 (2.3–2.9) <0.001
FEV 1 /height 2 (L/m 2 ) 1.0 (0.9–1.2) 1.1 (0.9–1.2) 1.1 (0.9–1.2) 0.9 (0.8–1.1) <0.001
FVC/height 2 (L/m 2 ) 1.3 (1.1–1.4) 1.3 (1.1–1.5) 1.3 (1.2–1.5) 1.1 (1.0–1.3) <0.001
FEV 1 /FVC (%) 82.7 (79.3–85.3) 80.5 (77.0–83.6) 79.6 (75.6–82.5) 83.0 (79.7–86.1) <0.001
Percent predicted FEV 1 (%)      
  GLI 112.0 (102.1–123.7) 115.2 (106.1–126.5) 113.9 (102.3–126.0) 103.1 (93.8–112.0) <0.001
  NHANES III 106.2 (96.9–117.2) 110.4 (100.7–119.7) 107.5 (96.5–118.4) 96.5 (88.5–105.5) <0.001
Percent predicted FVC (%)      
  GLI 111.7 (100.3–122.1) 119.2 (106.4–129.2) 116.9 (104.7–128.3) 101.1 (93.2–109.9) <0.001
  NHANES III 103.4 (92.8–113.0) 110.5 (98.3–119.1) 107.6 (96.7–118.4) 93.1 (85.5–100.8) <0.001