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. 2007 May 15;91(11):1524–1527. doi: 10.1136/bjo.2006.113803

Table 1 Demographic characteristics, health behaviours and disease conditions among NAION cases and controls.

Cases (n = 73) Controls (n = 73) p
Demographic characteristics
 Age (in years), mean (sd) 63.5 (11.0) 63.5 (11.1)
 Gender, n (%)
  Male 38 (52.1) 38 (52.1)
  Female 35 (47.9) 35 (47.9)
 Race, n (%) 0.008
  Caucasians 68 (93.2) 57 (78.1)
  African–Americans 5 (6.8) 16 (21.9)
Health behaviour characteristics
 Cigarette consumption
  Ever smoked 100 cigarettes, yes, n (%) 32 (43.8) 35 (48.0) 0.60
  Current cigarette smoker, yes, n (%) 5 (7.0) 7 (10.0) 0.41
 Alcohol consumption
  Ever consume alcohol, yes, n (%) 38 (52.1) 43 (58.9) 0.40
   Number of drinks per/week, mean (sd) 3.5 (6.1) 1.7 (3.0) 0.08
   Number of years drinking, mean (sd) 18.7 (15.1) 13.2 (10.7) 0.05
 Body mass index 28.2 (5.98) 28.4 (5.93) 0.77
Disease conditions, yes, n (%)
 Coronary artery disease 12 (17.4) 8 (11.1) <0.0001
 High blood pressure 44 (60.3) 37 (50.7) 0.37
 High cholesterol 49 (67.1) 31 (42.5) 0.46
 Diabetes 21 (28.8) 19 (26.0) 0.0001
 COPD 1 (1.4) 2 (2.7) <0.0001
 Glaucoma 3 (4.1) 17 (23.6) <0.0001
 Migraine headaches 8 (10.9) 6 (8.2) <0.0001
 Stroke 14 (20.0) 2 (2.8) <0.0001
 Cardiac arrhythmia 13 (18.3) 22 (30.1) <0.0001
 Myocardial infarction 41 (56.2) 31 (42.5) 0.91