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Table 1 Demographic of subjects with DME and age/gender matched diabetes controls, 1 July 2002 to 31 December 2005

From: Hospitalized cardiovascular events in patients with diabetic macular edema

  DME subjects Diabetes controls
  n % n %
All subjects 3519 100 10557 100
Female 1645 46.7 4935 46.7
Male 1874 53.3 5622 53.3
Age groups
18-29 49 1.4 157 1.5
30-39 217 6.2 591 5.6
40-49 517 14.7 1522 14.4
50-59 1144 32.5 3271 31.0
60-69 937 26.6 2971 28.1
70-79 516 14.7 1521 14.4
80-89 139 3.9 524 5.0
Mean 58 - 59 -
Median 58 - 59 -
SD 12 - 12 -
Region     
Midwest 1449 41.2 3485 33.0
Northeast 353 10.0 1184 11.2
South 1430 40.6 4803 45.5
West 287 8.2 1085 10.3
Charlson comorbidity index*
0 294 8.4 3355 31.8
1 1235 35.1 4772 45.2
2+ 1990 56.6 2430 23.0
Eligibility duration Days Years Days Years
Mean 1116 3.1 1085 3.0
Median 1218 3.3 1186 3.2
SD 371 1.0 398 1.1
Follow-up time
Mean 504 1.4 487 1.3
Median 438 1.2 417 1.1
SD 356 1.0 362 1.0
  1. *Chi-square, p < 0.0001.
  2. DME = diabetic macular edema; SD = standard deviation.