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Table 1 Age-standardized rates (per 100 population) and standardized rate ratios for diabetes-related visits, ophthalmologists visits and ophthalmologist visits amongst people with diabetes in those of all ages, 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 Diabetes visits Ophthalmologist visits Ophthalmologist visits amongst those with diabetes
Number of visits Rate (95% CI)a SRR (95% CI) Number of visits Rate (95% CI)a SRR (95% CI) Number of visits Rate (95% CI)a SRR (95% CI)
2010
 Charlottetown 2157 5.18 (4.96, 5.40) 0.92 (0.87, 0.98) 3743 8.97 (8.68, 9.26) Ref. 227 7.18 (5.69, 8.67) Ref.
 Summerside§# 1035 5.93 (5.56, 6.29) 1.06 (0.98, 1.14) 1275 7.15 (6.75, 7.54) 0.80 (0.75, 0.85) 74 4.30 (2.90, 5.70) 0.60 (0.42, 0.86)
 Prince§# 1668 5.62 (5.35, 5.88) Ref. 1999 6.70 (6.40, 6.99) 0.75 (0.71, 0.79) 71 4.20 (2.32, 6.08) 0.58 (0.38, 0.90)
 Kings & Queens¶§ 2128 4.89 (4.68, 5.10) 0.87 (0.82, 0.93) 3273 7.58 (7.32, 7.84) 0.84 (0.81, 0.89) 197 8.51 (6.36, 10.66) 1.18 (0.85, 1.65)
 Stratford 354 4.55 (4.07, 5.02) 0.81 (0.73, 0.90) 665 8.62 (7.96, 9.28) 0.96 (0.89, 1.04) 44 7.05 (4.42, 9.67) 0.98 (0.64, 1.50)
2011
 Charlottetown 2520 6.05 (5.81, 6.29) 0.91 (0.86, 0.97) 4347 10.41 (10.10, 10.72) Ref. 288 7.18 (5.82, 8.53) Ref.
 Summerside§# 1223 7.01 (6.62, 7.41) 1.06 (0.98, 1.14) 1419 7.98 (7.56, 8.39) 0.77 (0.72, 0.81) 80 3.79 (2.69, 4.89) 0.53 (0.38, 0.73)
 Prince§# 1972 6.64 (6.34, 6.93) Ref. 2316 7.75 (7.44, 8.07) 0.74 (0.71, 0.78) 88 4.02 (2.46, 5.59) 0.56 (0.38, 0.82)
 Kings & Queens¶§ 2554 5.88 (5.65, 6.10) 0.89 (0.83, 0.94) 3700 8.57 (8.29, 8.84) 0.82 (0.79, 0.86) 231 7.15 (5.65, 8.66) 1.00 (0.75, 1.32)
 Stratford 411 5.28 (4.77, 5.80) 0.80 (0.72, 0.88) 802 10.37 (9.65, 11.10) 1.00 (0.92, 1.07) 52 7.97 (5.25, 10.69) 1.11 (0.74, 1.66)
2012
 Charlottetown 2490 5.97 (5.74, 6.21) 0.86 (0.81, 0.91) 4361 10.44 (10.13, 10.75) Ref. 274 6.49 (5.24, 7.74) Ref.
 Summerside§# 1165 6.65 (6.27, 7.03) 0.96 (0.89, 1.03) 1457 8.19 (7.77, 8.61) 0.78 (0.74, 0.83) 79 3.92 (2.77, 5.08) 0.60 (0.43, 0.84)
 Prince§# 2060 6.93 (6.63, 7.23) Ref. 2310 7.74 (7.43, 8.06) 0.74 (0.71, 0.78) 91 3.88 (2.31, 5.44) 0.60 (0.40, 0.89)
 Kings & Queens¶§ 2646 6.10 (5.87, 6.33) 0.88 (0.83, 0.93) 3848 8.92 (8.64, 9.20) 0.85 (0.82, 0.89) 246 8.21 (6.42, 10.00) 1.27 (0.94, 1.70)
 Stratford 423 5.44 (4.92, 5.97) 0.79 (0.71, 0.87) 842 10.90 (10.16, 11.64) 1.04 (0.97, 1.13) 49 6.79 (4.45, 9.12) 1.05 (0.70, 1.56)
  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 diabetes related visits compared to Prince
  5. § P < 0.05 for ophthalmologist visits compared to Charlottetown
  6. # P < 0.05 for ophthalmologist visits amongst those with diabetes compared to Charlottetown