Table 4 Prevalence of microvascular and macrovascular complications in included studies, 2003–2011
Author | Year of study | Response rate (%) | Sample size | Age | Diabetes type | Time since diabetes diagnosis | Data source | Diagnostic method | Type of complication | Prevalence (%) Total |
|---|---|---|---|---|---|---|---|---|---|---|
Kelliher et al. [28] | 2003 | - | 6826 | Adults | All | - | National blind registry | Visual acuity of <6/60 in better eye/visual field subtending angle of 20°/< less | Blindness due to diabetic retinopathy | 4.7 |
Buckley et al. [29] | 2009 | - | 723,551 | ≥20 years | All | - | Hospital discharge data | ICD-10 codes | Non-traumatic lower leg amputation | 0.2 |
Marsden et al. [34] | Nov 2008-March 2009 | 72 | 1071 | 63 years (sd 13) | T1: 7.5 % T2: 92.3 % | 15 years | Electronic & paper clinical notes & referral letters | - Risk classification score ACR 2.5–25 ACR >25 - - - - | Diabetic retinopathy Foot ulcer Microalbuminuria Proteinuria Myocardial Infarction Heart Failure Transient Ischemic Attack Stroke Total macrovascular | 24.8 2.5 32.1 6.0 0.4 0.3 1.5 0.5 3.5 |
Hurley et al. [30] | Feb 2008- Sept 2009 | 68 | 563 | 64 years (sd 13.4) | T1: 10 % T2: 90 % | 7.7 (8.2) years | Clinical foot examination & practice medical records | Scottish Intercollegiate Guidelines Network risk stratification system & previous doctor diagnosis | Documented diabetic neuropathy Foot ulceration Past amputation Neuropathy symptoms at examination | 3.0 3.7 1.7 32 |
Farrell & Moran [31] | 2010 | - | 309 | - | T2 | - | Chart review | - | Diabetic retinopathy Neuropathy Peripheral vascular disease Chronic kidney disease Cerebrovascular disease | 6.5 12.3 12.9 5.5 5.2 |
Tracey et al. [32] | 2009–2011 | 62 | 655 | ≥50 years | T2 | 5 (IQR 3–10) years | SR previous doctor diagnosis | - | Diabetic retinopathy Neuropathy Leg ulcer Nephropathy Proteinuria Total macrovascular | 8.2 (6.2–10.9) 14.6 (11.4–18.2) 4.2 (2.8–6.4) 5.1 (3.4–7.6) 6.1 (4.3–8.6) 15.1 (12.2–18.4) |
McHugh et al. [33] | 2011 | GP = 94 %; Screening uptake = 43 % | 1542 | 65 years (sd 13) | T1: 4.9 % T2: 85.6 % | - | Eye examination & clinical records | Fundus 45° digital PASA-approved camera | Background (R1) Pre proliferative (R2) Proliferative (R3) Any diabetic retinopathy | 21.5 (19.5–23.6) 3.4 (2.6–4.5) 0.7 (0.4–1.3) 25.6 (23.5–27.9) |