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) | Â | - | - | - |
 | 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 |