International Urology and Nephrology

, Volume 45, Issue 2, pp 553–560

Prevalence of abnormal urinary albumin excretion in elderly people: a Spanish survey

  • N. R. Robles
  • F. J. Felix
  • D. Fernandez-Berges
  • J. Perez-Castán
  • M. J. Zaro
  • L. Lozano
  • P. Alvarez-Palacios
  • A. Garcia-Trigo
  • V. Tejero
  • Y. Morcillo
  • A. B. Hidalgo
Nephrology - Original Paper

DOI: 10.1007/s11255-013-0380-8

Cite this article as:
Robles, N.R., Felix, F.J., Fernandez-Berges, D. et al. Int Urol Nephrol (2013) 45: 553. doi:10.1007/s11255-013-0380-8

Abstract

Objectives

HERMEX is a population-based study, which tries to evaluate the prevalence of cardiovascular risk factors in the population of Extremadura, Spain. This report provides the data concerning albuminuria in the elderly people recruited in the survey.

Design and methods

3,402 subjects were randomly selected from the database of the Health Care System of Extremadura. The final sample included 2,813 subjects (mean age 51.2 years, 53.5 % female). Urinary albumin excretion rate (UAER) in the first morning urine sample was analyzed. Albuminuria was diagnosed when UAER (albumin-to-creatinine ratio) was ≥22 mg/g in men or ≥31 mg/g in women.

Results

The prevalence of abnormal UAER in the elderly population was 10.9 % (microalbuminuria: 8.9 %; overt proteinuria: 1.8 %). The younger subjects showed a lower prevalence of microalbuminuria (3.4 %, p < 0.001). Elderly patients showed a higher prevalence of cardiovascular risk factors than the younger ones. The elderly had higher systolic blood pressure and pulse pressure than the younger ones. Furthermore, the elderly subjects had lower plasma levels of HDL cholesterol, but higher triglycerides, glucose, creatinine, and glycosylated hemoglobin; no differences were found for total and LDL cholesterol. When the prevalence of causes of microalbuminuria was compared between age groups, we found a sharp increase in diabetic and, especially, hypertensive patients in the elderly group. The multivariate analysis showed an independent association of microalbuminuria with systolic blood pressure and plasma creatinine.

Conclusions

A high prevalence of abnormal UAER in elderly people was detected in a randomly selected sample of Spanish general population. In most elderly patients, microalbuminuria was associated with high blood pressure and, less frequently, with diabetes mellitus.

Keywords

Microalbuminuria Cardiovascular risk factors Hypertension Elderly 

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • N. R. Robles
    • 1
    • 7
  • F. J. Felix
    • 2
  • D. Fernandez-Berges
    • 3
    • 4
    • 5
  • J. Perez-Castán
    • 4
  • M. J. Zaro
    • 5
  • L. Lozano
    • 6
  • P. Alvarez-Palacios
    • 3
  • A. Garcia-Trigo
    • 3
  • V. Tejero
    • 3
  • Y. Morcillo
    • 3
  • A. B. Hidalgo
    • 3
  1. 1.Cátedra de Riesgo Vascular, Facultad de MedicinaUniversidad de SalamancaSalamancaSpain
  2. 2.Centro de Salud Villanueva de la Serena-NorteVillanueva de la Serena, BadajozSpain
  3. 3.FUNDESALUD, Programa de Investigación en Enfermedades CardiovascularesUnidad de Investigación Don Benito-Villanueva de la SerenaBadajozSpain
  4. 4.Gerencia de Area de Don Benito-Villanueva de la SerenaBadajozSpain
  5. 5.Hospital de Don Benito-Villanueva de la SerenaBadajozSpain
  6. 6.Centro de Salud MeridaBadajozSpain
  7. 7.Unidad de Hipertensión ArterialHospital Infanta CristinaBadajozSpain

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