Table 1

Prevalence of diabetes and impaired fasting glucose by study domains, natural regions, and selected demographic variables

Prevalence of diabetes (%)Prevalence of IFG (%)
Point estimate (95% CI)p ValuePoint estimate (95% CI)p Value
National prevalence7.0 (5.3 to 8.7)22.4 (19.4 to 25.5)
 Previously known4.2 (3.0 to 5.5)
 Newly diagnosed2.8 (1.7 to 3.8)
Study domains
 Metropolitan Lima city8.4 (5.6 to 11.3)0.1624.9 (19.8 to 29.9)0.131
 Rest of the country (Ref.)6.0 (4.0 to 7.9)20.6 (16.9 to 24.4)
Natural regions
 Coast (Ref.)8.2 (6.1 to 10.3)26.4 (22.5 to 30.2)
 Highlands4.5 (1.9 to 7.2)0.03317.4 (11.3 to 23.5)0.028
 Jungle3.5 (0.2 to 6.8)0.01814.9 (5.7 to 24.2)0.065
Gender
 Male7.01 (4.7 to 9.3)0.98628.3 (23.3 to 33.3)<0.001
 Female (Ref.)7.04 (5.2 to 8.9)19.1 (16.1 to 22.0)
Age groups (years)<0.0010.061
 25–341.6 (0.4 to 2.9)15.7 (10.1 to 21.4)
 35–443.8 (1.7 to 6.0)26.8 (20.9 to 32.8)
 45–5411.8 (7.2 to 16.5)27.8 (21.4 to 34.3)
 55–6417.7 (11.8 to 23.5)26.2 (19.8 to 32.6)
 65+10.6 (5.3 to 15.9)27.8 (20.7 to 34.8)
Educational level0.0230.553
 No formal education18.8 (7.2 to 30.4)21.4 (9.9 to 32.8)
 Elementary8.1 (4.2 to 11.9)21.0 (16.0 to 26.1)
 Middle-high7.4 (4.9 to 9.9)25.3 (19.4 to 31.2)
 Technical4.3 (1.9 to 6.6)20.8 (15.5 to 26.1)
 College6.4 (1.9 to 10.8)26.6 (19.6 to 33.6)
  • Prevalence (univariate/bivariate) estimations were performed using separate logistic regression models. Ref. denotes reference categories for statistical comparisons. For age and educational level variables, design-adjusted Wald tests were used for testing if the linear combination of coefficients was different from zero.

  • IFG, impaired fasting glucose.