[Prevalence of chronic kidney disease in hypertensive patients under treatment at primary care health centres in Spain and the monitoring of their blood pressure: the DISEHTAE Study].
OBJECTIVE
To establish what proportion of hypertensive patients being treated in the primary care health centres of Spain have diminished renal function, and to ascertain their level of blood pressure (BP) control.


METHODS
Descriptive, cross-sectional study, based on an external audit of clinical charts.


METHODS
Primary care health centres in 14 autonomous regions.


METHODS
A total of 6,113 charts of hypertensive patients from 107 primary care health centres were checked. The selection of primary care health centres and charts was randomized.


METHODS
Creatinine and BP figures of the patients included were analyzed. Chronic kidney disease was defined as a glomerular filtration rate (GFR), as calculated by the equation developed by the Modification of Diet in Renal Disease (MDRD) Study, at under 60 mL/min per 1.73 m(2) of body surface area. A good level of BP control was defined as having figures lower than 130/80 mm Hg.


RESULTS
Of all patients, 25.7% (95% CI, 24.3-27.2) had a diminished GFR. Of these, 19.1% (95% CI, 16.6-21.9) had a good level of control of systolic BP, 49.9% (95% CI, 46.6-53.2) had a good level of control of diastolic BP, and 15.2% (95% CI, 12.9-17.8) had a good level of control of both.


CONCLUSIONS
A considerable proportion of hypertensive patients under treatment in the primary care health centres of Spain have a diminished GFR. Only 1 in 6 of these have their BP under control.
Vara-González
Luis
L
Medicina de Familia, Centro de Salud La Marina, Santander, Cantabria, Spain. luvara@ono.com
Martín Rioboó
Enrique
E
Ureña Fernández
Tomás
T
Dalfó Baqué
Antoni
A
Flor Becerra
Isabel
I
López Fernández
Vicente
V
D000293:Adolescent; D000328:Adult; D000368:Aged; D001795:Blood Pressure Determination; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy*; D007676:Kidney Failure, Chronic / Q000150:complications* / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011320:Primary Health Care; D013030:Spain / Q000453:epidemiology