title: Effect of socio-economic status, age and sex on antibody titre profile to Salmonella typhi/paratyphi in Ile-Ife, Nigeria.
abstract: BACKGROUND
  Typhoid fever remains a great socio-medical problem in many poor and underdeveloped countries, with an estimated 16 million cases and 600,000 deaths occurring each year. Although it has a world wide distribution, typhoid fever is endemic where sanitary controls are inadequate. The distribution of the infection in relation to age and sex has shown that typhoid fever is more prevalent in males than in females with out satisfactory explanation. Also, those in their second and third decades are more susceptible. The aim of the study is to evaluate the effect of socio-economic status, age and sex on antibody titre profile to Salmonella typhi and praratyphi in Ile-Ife, using both healthy individuals with immunological scar to Salmonella typhi/paratyphi and enteric fever patients.
  
  
  METHODS
  Healthy volunteers (310) were recruited into the study and clinically diagnosed/culture proven cases (48) were used as control. Widal text was performed on each serum. Slide agglutination was first done, then positive samples were further subjected to tube agglutination for quantitative titration.
  
  
  RESULTS
  The relationship between age and antibody titres in both healthy subjects and enteric fever patients is not statistically significant, (P values > 0.05). From the study also, sex and social status do not influence antibody titres to salmonella typhi/paratyphi (P value > 0.05).
  
  
  CONCLUSIONS
  The study has shown that age, sex and social class do not statistically influence antibody titre profile to S. typhi/paratyphi in Ile-Ife, south western Nigeria.
authors.forename: S B
authors.initials: SB
authors.lastname: Zailani
authors.forename: A O
authors.initials: AO
authors.lastname: Aboderin
authors.forename: A O
authors.initials: AO
authors.lastname: Onipede
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000907:Antibodies, Bacterial / Q000032:analysis*; D016022:Case-Control Studies; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria / Q000453:epidemiology; D010284:Paratyphoid Fever / Q000453:epidemiology*; D012482:Salmonella paratyphi A / Q000276:immunology*; D012485:Salmonella typhi / Q000276:immunology*; D016036:Seroepidemiologic Studies; D012737:Sex Factors; D012959:Socioeconomic Factors; D014435:Typhoid Fever / Q000453:epidemiology*
chemical_list: D000907:Antibodies, Bacterial