Background:

Diabetic nephropathy is the main cause of chronic kidney disease (CKD), however, there are no data available about the prevalence of chronic kidney disease in the early stages in Mexico. A key role in first level attention consists in performing timely screenings for diseases such as CKD. In most cases CKD is underdiagnosed in early stages, because it is asymptomatic.

Purpose:

To determine the frequency of CKD in long-standing diabetes type 2

Methods:

This was a cross-sectional descriptive study. We included 263 patients with diabetes type 2 with at least 5 years of evolution, not undergoing renal function replacement therapy. The variables of this study were: sociodemographic characteristics and estimation of the glomerular filtration rate through the CKD-EPI equation. Categorical variables were summarized as frequencies and percentages. For continuous variables, mean and standard deviation were reported. The significance of differences between groups was assessed by Student's t-test or square chi or Fisher's exact test, and p-value ≤ 0.05 was considered statistically significant.

Results:

the KDIGO classification has 5 stages. The results regarding the degree of glomerular filtration: stage 1 with 39.5% (95% CI, 34.2-45.6) , stage 2 with 38.8% ( 95% CI, 32.77-44.5),stage 3a with 8% ( 95% CI, 4.9-11.4), stage 3b with 5.7% (95% CI, 3.4-8.7), grade 4 with 6.8% (95% CI, 3.8-9.9) and stage 5 with 1.1% (95% CI 0.0-2.7). The average age was 69.26 ± 11.01 in the group with CKD. Male gender predominated in the group CKD with 34 (59.6%) and 23 (40.3%), for female. Regarding comorbidities, hypertension arterial and treatment when analyzed for either absence or presence of CKD were statistically significant. The same findings can be obtained in laboratory results.

Conclusion:

The prevalence of suspected CKD in our population is 21%, at least 1 in 5 diabetic patients with ≥5 years of evolution suffer a decrease in GFR; however, we cannot consider it to be CKD until the presence of kidney damage is assessed and confirmed at 3 months.

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