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Table 1 Prevalence of type 2 diabetes in North Africa 1995-2012

From: Prevalence and complications of diabetes mellitus in Northern Africa, a systematic review

  Author Sample size (participation rate %) +Methods Age range site Methods Prevalence (%) (95%CI) Prevalence undiagnosed diabetes (% of all diabetics) Prevalence IGT (%)(95%CI) Prevalence IFG (%) % Obese (BMI ≥ 30) (95% CI)
       Males Females Total    Males Females Males Females
Algeria Malek 2001 [7] 1457 (90) Random sample 30-64 Urban and rural OGTT (WHO 85) 8.6 7.8 8.2 (6.8-9.6) Urban: 9.7 Rural: 7.3 4 8 7.1 (5.8-8.4)   - - -
  Latifa 2007 [8] 805 (72) Random sample ≥20 Urban FBG (WHO) 15.7 16.5 16.1 - - -   10.5 27.9
  Zaoui 2007 [9] 7656 Random sample ≥20   FBG (WHO 85) 15.8 Urban: 17.1 Rural: 14.1 7.5 Urban: 7.1 Rural: 7.8 10.5 Urban: 10.8 Rural: 10.1 - -    43.2 Urban: 56.7 Rural: 27.2 37.1 Urban: 51.8 Rural: 20.0
Egypt Herman 1995 [10] 4620 (41–85) Random sample ≥20 Urban and Rural RPG+FBG (WHO 85) Urban, higher SES: 12.9 Urban, lower SES: 7.0 Rural: 2.7 Urban, higher SES: 8.1 Urban, lower SES: 10.0 Rural: 2.1 Urban, higher SES: 20.0 Urban. lower SES: 13.5 Rural: 4.9 Urban, higher SES: 50 Urban, lower SES: 38 Rural: 51 Urban, higher SES: 8.6 Urban, lower SES: 5.4 Rural: 31.1    Urban, higher SES: 56 Urban, lower SES: 19 Rural: 6 Urban higher SES: 45 Urban, lower SES: 64 Rural: 25
Libya Kadiki 2001 [11] 868 (86.6) ≥20 Urban and Rural OGTT (WHO 98 ADA 97) 16.3 (14.5-18.3) 13 (10.0-16.1) 14.1 (10.9-17.1) Urban: 14.5 Rural: 13.5 38 Urban: 18 Rural: 49 8.5 (5.8-11.3) Urban: 5.8 Rural: 11.8    with diabetes: 19.5 with IGT: 11.8  
Morocco Tazi 2003 [12] 1662 (96.4) Random sample ≥20 Urban and Rural FBG (ADA 97) 6.6 (4.7-8.6) 6.6 (5.1-8.1) 6.6 (5.4-7.8) Urban: 9.0 (7.1-10.8) Rural 4.4 (3.0-5.8)      7.2 (5.2-9.1) 19.1 (16.5-21.6)
Tunisia Bougerra 2007 [13] 1735 (96.4) Random sample ≥19 Urban and Rural FBG (WHO 80 ADA 97) 9.5 Urban: 12.3 Rural: 5.6 10.1 Urban: 12.5 Rural: 5.9 9.9 75 - 5.3 Urban: 5.5 Rural: 4.9 5.1 Urban: 4.8 Rural: 5.7 BMI ≥25: 5.4 BMI ≥25: 4.2
  Ghannem 1992 [14] 555 (76) Random sample ≥20 semi-Urban OGTT (WHO 85) 6.3 6.6 6,5 39 -    12 26
  Ghari 2002 [15] 692 (69) Random sample 35-50 Urban and Rural FBG (ADA 97) 6.1 Urban: 9.3 Rural: 2.0 8.9 Urban: 10.4 Rural: 4.5 7.2 Urban: 9.9 Rural: 3.4 31 -     37
  Elasmi 2002 [16] 2483 (99.6) Random sample 35-70 Urban and Rural FBG (ADA 97) 16 Urban: 17 Rural: 11 Urban: 15 Rural: 15       19 Urban: 19 Rural:: 11 46 Urban: 47 Rural:: 37
  Elbagir 1996 [17] 1284 (not reported) Random sample ≥25 Urban and Rural OGTT (WHO 85) 3.5 34 3.42 (2.4-4.4) Urban: 3.87 (2.6-5.2) Rural: 2.62 (1.2-4.1) 64 Urban: 63 Rural: 67 2.88 (2.0-3.8) Urban: 3.27 (2.1-4.5) Rural: 2.18 (0.8-3.5)     
  Elbagir 1998 [18] 724 (not reported) sample ≥25 Urban and Rural OGTT (WHO 85) Urban: 15.8 (9.2-22.4) Rural: 2.8 (2.1-7.7) Urban: 10.7 (6.4-15.0) Rural: 8.3 (3.5-13.1) 8.25 (6.3-10.3) Urban: 9.54 (6.9-12.2) Rural: 6.08 (3.2-9.0) 62 Urban: 36 Rural: 50 7.87 (5.8-9.8) Urban: 8.03 (5.5-10.5) Rural: 7.60 (4.4-10.8)    BMI≥27: 24 BMI≥25: 45
  1. OGTT: Oral Glucose Tolerance Test FBG: Fasting Blood Glucose RPG: Random Plasma Glucose Test WHO 80/85/89: WHO Health Organozation 1985/98/99 diagnostic criteria ADA 97/04 America Diabetes Association 1997 diagnostic criteria IFG: Impaired Fasting Glucose IGT: Impaired Glucose Tolerance SES: Socioeconomic Status.