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Table 2 Age-standardized rates (per 100 populations) and standardized rate ratios for glaucoma-related visits in people aged 40 years and older, Prince Edward Island, Canada, 2010–2012

From: Policy implications of regional variations in eye disease detection and treatment on Prince Edward Island: a repeated cross-sectional analysis, 2010–2012

Year; region Number of visits Rate (95% CI)a SRR (95% CI)
2010
 Charlottetown 1255 5.59 (5.28, 5.90) Ref.
 Summerside 427 4.35 (3.94, 4.76) 0.78 (0.70, 0.86)
 Prince 591 3.66 (3.37, 3.96) 0.66 (0.60, 0.72)
 Kings & Queens 1032 4.47 (4.20, 4.74) 0.80 (0.74, 0.87)
 Stratford 218 5.45 (4.73, 6.18) 0.98 (0.85, 1.13)
2011
 Charlottetown 1368 6.09 (5.77, 6.42) Ref.
 Summerside 445 4.56 (4.13, 4.98) 0.75 (0.68, 0.83)
 Prince 618 3.83 (3.53, 4.13) 0.63 (0.57, 0.69)
 Kings & Queens 1142 4.95 (4.66, 5.23) 0.81 (0.75, 0.88)
 Stratford 245 6.17 (5.39, 6.94) 1.01 (0.88, 1.16)
2012
 Charlottetown 1370 6.10 (5.78, 6.42) Ref.
 Summerside 455 4.62 (4.19, 5.05) 0.76 (0.69, 0.84)
 Prince 622 3.85 (3.55, 4.16) 0.63 (0.58, 0.69)
 Kings & Queens 1198 5.20 (4.90, 5.49) 0.85 (0.79, 0.92)
 Stratford 253 6.38 (5.59, 7.17) 1.05 (0.91, 1.20)
  1. Abbreviations: CI confidence intervals, Ref reference, SRR Standardized rate ratio
  2. Regions were defined based on distinctive forward sortation areas (first 3 digits of the postal code)
  3. aRates were age-standardized to the 2011 Prince Edward Island population
  4. p > 0.05 for rates in Stratford compared to Charlottetown for all years; p < 0.05 for rates in Summerside, Kings & Queens and Prince compared to Charlottetown in all years