Research Article
Prevalence, Demographics, and Treatment Characteristics of Visual Impairment due to Diabetic Macular Edema in a Representative Canadian Cohort
Table 1
Demographics of the populations investigated.
| | | Control cohort
( 76,077) | Patients with DME
( 1,316) | Patients with DME (<20/40)
() |
| | Average age (years) | 69 | 63 | 64 | | Average duration of diabetes (years) | n/a | 19 | 21 | | Average age at diagnosis of DME (years) | n/a | 52 | 48 | | Age distribution [ (%)] | | | | | Males <40 | 14,455 (19%) | 92* (7%) | 6 (3%) | | Males 40–59 | 1,932 (17%) | 236* (18%) | 26 (12%) | | Males 60–69 | 3,803 (5%) | 263* (20%) | 67 (31%) | | Males 70+ | 6,086 (8%) | 92 (7%) | 11 (5%) | | Females <40 | 14,454 (19%) | 158* (12%) | 24 (11%) | | Females 40–59 | 11,411 (15%) | 184 (14%) | 38 (18%) | | Females 60–69 | 3,804 (5%) | 234* (8%) | 34 (16%) | | Females 70+ | 9,129 (12%) | 53* (4%) | 9 (5%) | | Sex [ (%)] | | | | | Male | 37,551 (49%) | 671 (51%) | 116 (54%) | | Female | 38,526 (51%) | 645 (49%) | 99 (44%) | | Ethnicity [ (%)] | | | | | Caucasian | 59,340 (76%) | 934 (71%) | 131** (61%) | | Aboriginal | 6,847 (9%) | 158 (12%) | 47** (22%) | | Hispanic | 3,043 (4%) | 92* (7%) | 0 | | South Asian | 3,055 (5%) | 79 (6%) | 37 (17%) | | Asian | 1,521 (2%) | 39 (3%) | 0 | | African descent | 1,506 (2%) | 13 (1%) | 0 |
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*Significantly different from cohort. 1-tail test. .
**Significantly different from DME cohort. 1-tail test. .
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