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Revista Colombiana de Obstetricia y Ginecología

Print version ISSN 0034-7434

Abstract

LOPEZ-MARTINEZ, Jessika Lissethe; MONTOYA-JARAMILLO, Yanett Marcela  and  BERBESI-FERNANDEZ, Dedsy Yajaira. Risk factors associated with acute pyelonephritis in pregnant women, from third-party payer institutions in Colombia, between 2008 and 2012: A case-control study. Rev Colomb Obstet Ginecol [online]. 2014, vol.65, n.4, pp.317-322. ISSN 0034-7434.  http://dx.doi.org/10.18597/rcog.35.

Objective: To identif y risk factors for the development of acute pyelonephritis in pregnant women in Barranquilla, Bogotá, Bucaramanga, Cali and Medellín (Colombia) covered by a health benefits management organization. Materials and methods: Case-control study with two controls for every case. Selection criteria: pregnant women presenting for delivery between January 1st, 2008 and December 31st, 2012 to the different healthcare institutions of a thrird-party payer. Women with urinary tract abnormalities were excluded. Cases were defined as those diagnosed with acute pyelonephritis during pregnancy. Controls were defined as pregnant women delivered during the same period, not diagnosed with pyelonephritis. Cases were selected consecutively on the basis of convenience, and controls were selected at random. Gestational, social and demographic variables, and comorbidities were measured. Association was assessed using bivariate and multivariate analysis. Results: An incidence of 3.5 cases of acute pye- lonephritis for every 10,000 pregnant women was found. The diagnosis was made between weeks 5 and 38 of gestation, the vast majority during the second (40.2%) and the third (48.0%) trimesters. None of the cases had a history of pyelonephritis. An association was found between acute pyelonephritis, first pregnancy (OR = 1.94; IC 95%: 1.13-3.33), being a teenager (OR = 2.85; IC 95%: 1.51-5.40), and urinary tract infection before pregnancy (OR 2.29; IC 95%: 1.17-4.44). Conclusion: Risk factors for acute gestational pyelonephritis include first pregnancy, being a teenager and having a history of urinary tract infection before pregnancy.

Keywords : Pyelonephritis; risk factors; pregnancy; case-control studies; Colombia.

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