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)

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