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Thorax 53:939-943 doi:10.1136/thx.53.11.939
  • Original article

Environmental correlates of impaired lung function in non-smokers with severe α1-antitrypsin deficiency (PiZZ)

Table 4

Multiple linear regression analysis with FEV1 (% predicted) as the dependent variable, and age, sex, exposure to kerosene heater emissions, and agricultural employment for ⩾10 years as the independent variables

  • ↵4-150 FEV1 = Intercept + β4-150age + β4-150sex + β4-150kerosene + β4-150agriculture. The variance of FEV1 (% predicted) explained by the variables (R2) was 35% in the series as a whole, 45% in the men and 26% in the women.

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