[White-coat hypertension and risk factors in recently diagnosed hypertensive patients].
OBJECTIVE
To determine the frequency of white-coat hypertension (WCH) and associated risk factors in recently diagnosed hypertensive patients.


METHODS
A cross-sectional study was carried out from January 1997 to December 1998. The reference population consisted of 195 patients presenting with systemic arterial hypertension (SAH) of less than 1-month evolution and receiving no medical treatment. According to Joint National Committee (JNCVI) criteria, 100 individuals with Stages I, II, and III SAH underwent the following procedures: clinical history; physical examination; electrocardiogram, serum creatinine; urianalysis, and ambulatory monitoring of arterial pressure (AMAP).


RESULTS
A total of 54% of patients were WCH carriers and 46% presented sustained hypertension (SH); 37% of WCH patients and 63% of SH patients had a family history of SAH, while 19.7% of WCH patients and 39.2% of SH patients presented with stage 1 retinopathy. Left ventricular hypertrophy was absent in all WCH patients and present in 21.7% of SH patients. A total of 31% of WCH patients and 50% of SH patients presented electrocardiographic changes.


CONCLUSIONS
A total of 54% of patients presented WCH. Clinical/epidemiologic profiles of WCH carriers and SH patients are different.
Unidad de Investigación en Epidemiología Clínica, Hospital General de Zona y Medicina Familiar No. 1, IMSS, Colima, Col.
Raúl
R
Aguirre-Ramos
Benjamín
B
Trujillo-Hernández
Miguel
M
Huerta
Xóchitl
X
Trujillo
Clemente
C
Vásquez
Rebeca O
RO
Millán-Guerrero
D000328:Adult; D000368:Aged; D000465:Algorithms; D001794:Blood Pressure / Q000502:physiology; D001795:Blood Pressure Determination / Q000706:statistics & numerical data; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology*; D008297:Male; D008800:Mexico; D008875:Middle Aged; D012160:Retina / Q000473:pathology; D012307:Risk Factors