Table 1.

Descriptive characteristics of cases and controls providing data on pneumonia at least 1 y prior to entry into the EAGLE case-control study

CharacteristicCases (n = 1,890)Controls (n = 2,078)p
Median age (range)67 (35-80)66 (35-80)0.02
% male79.276.40.04
Study area, n (%)0.9
    Brescia238 (12.6)242 (11.6)
    Milano1,242 (65.7)1,417 (68.2)
    Monza129 (6.8)116 (5.6)
    Pavia125 (6.6)126 (6.1)
    Varese156 (8.3)177 (8.5)
% ever smokers93.067.8<0.0001
    Median smoking intensity (average packs/d)1.00.75<0.0001
    Median duration of smoking (y)4433<0.0001
Education, n (%)*<0.0001
    None107 (5.7)90 (4.3)
    Elementary734 (38.9)557 (26.8)
    Middle school541 (28.6)601 (28.9)
    High school411 (21.8)568 (27.3)
    University96 (5.1)262 (12.6)
% Married/cohabitating77.082.8<0.0001
  • *Does not sum to total due to missing values.