title: Obesity and iron deficiency anemia as risk factors for asymptomatic bacteriuria.
abstract: BACKGROUND
  Few studies examined the risk factors of asymptomatic bacteriuria, showing contradictory results. Our study aimed to examine the association between different clinical and laboratory parameters and asymptomatic bacteriuria in internal medicine patients.
  
  
  METHODS
  330 consecutive hospitalized subjects, asymptomatic for urinary tract infections (UTIs), underwent to microscopic examination of urine specimens. 100 subjects were positive for microscopic bacteriuria and were recruited into the study. At the quantitative urine culture 31 subjects of study population were positive while 69 subjects were negative for bacteriuria.
  
  
  RESULTS
  The analysis of clinical characteristics showed that the two groups of subjects (positive and negative urine culture for bacteriuria) were significant different (p<0.05) about obesity (76.7% vs 42% respectively), metabolic syndrome (80.6% vs 44,9%), cholelithiasis (35.5% vs 13,2%) and iron deficiency anemia (80.6% vs 53,6%). The univariate analysis showed that only obesity, cholelithiasis and iron deficiency anemia were positively associated with positive urine culture for bacteriuria (Odds Ratios [OR]=3.79, p=0.0003; OR=2,65, p=0.0091; OR=2.63, p=0.0097; respectively). However, the multivariate analysis by logistic regression showed that only obesity and iron deficiency anemia, independently associated with positive urine culture for bacteriuria (OR=3.9695, p=0.0075; OR=3.1569, p=0.03420 respectively).
  
  
  CONCLUSIONS
  This study shows that obesity and iron deficiency anemia are independent risk factors for asymptomatic bacteriuria.
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy. Electronic address: francesco_cuttitta@libero.it.
authors: F
authors: F
authors: Cuttitta
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: D
authors: D
authors: Torres
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: D
authors: D
authors: Vogiatzis
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: C
authors: C
authors: Buttà
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: M
authors: M
authors: Bellanca
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: D
authors: D
authors: Gueli
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: U
authors: U
authors: Lupo
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: C
authors: C
authors: Schimmenti
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: G
authors: G
authors: Virzì
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: R
authors: R
authors: Petrantoni
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: F
authors: F
authors: Balistreri
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: S
authors: S
authors: Paterna
authors: Dipartimento Biomedico Medicina Interna e Specialistica, Azienda Ospedaliera Universitaria Policlinico "P. Giaccone", Università degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy.
authors: G
authors: G
authors: Parrinello
mesh_terms: D000368:Aged; D018798:Anemia, Iron-Deficiency / Q000150:complications*; D058345:Asymptomatic Infections / Q000453:epidemiology; D001437:Bacteriuria / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000150:complications*; D012307:Risk Factors
keywords: Asymptomatic bacteriuria; Iron deficiency anemia; Obesity; Urinary tract infections