Salmonella Hillsborough Infection Risk Factors – Data Analysis Report 1Salmonella Hillsborough Infection Risk Factors – Data Analysis ReportNameCourse NumberDateFaculty Name
Salmonella Hillsborough Infection Risk Factors – Data Analysis Report 2Salmonella Hillsborough Infection Risk Factors – Data Analysis ReportBackgroundThe Public Health unit in Twin Rivers conducted a retrospective case-control study on the riskfactors that can be associated with Salmonella Hillsborough infection, which is spread through water andfood contaminations. This data analysis report will focus on statistical tests of the outcome by theexposures and possible confounders [1]. Number of ParticipantsThe study involved 100 cases and 211 controls constituting to a total of 311 participants.Information about the study participants was collected and recorded. Research QuestionWhat are the risk factors associated with Salmonella Hillsborough infection based on the datacollected in Twin Rivers’ public health unit? Specific HypothesisThe main hypothesis of the study was to determine whether people are more likely to be exposed toenvironmental sources of Salmonella. The specific hypothesis will be tested by performing statistical testson specific exposures; hence determining the risk ratios of Salmonella infection. OutcomeSalmonella infection is the outcome of interest in this study. Those infected are categorized as caseswhile those exposed by not infected assigned to the control category. Data DetailsStudy TypeThe study type is a population-based case-control involving 100 cases and 211 control. Thisindicates that control and cases are matched in the ratio 2:1. Date SetSalmonella Hillsborough data set is used in this analysis after several variables were removed forparticipant privacy purposes. The final data set includes 69 variables, most of which are categoricalrepresenting different responses from the participants.
Salmonella Hillsborough Infection Risk Factors – Data Analysis Report 3Analysis SoftwareSTATA version 12.1 has been used in the analysis of the data, hence representing the results intables and chart formats. Study PopulationPeople who visited Twin Rivers for health check-up of treatment of Salmonella infection from thestudy population. Exposure VariablesA person can be exposed to Salmonella organism after eating food and/ drinking water that iscontaminated. The exposure variables revolve around having pets, getting in contact with other animals,swimming in different places, drinking water and eating different foods from distinct places. Below is atable of exposure variables included in this study.Table 1: A table of Exposure variablesVariable NameVariable typeDescriptionCATONominalPerson kept a cat as a petDOGONominalPerson kept a dog as a petCHICKONominalPerson kept a chicken as a petBIRDONominalPerson kept a bird as a petFISHONominalPerson kept a fish as a petGUINEAONominalPerson kept a guinea pig as a petOTHPETONominalPerson kept another animal not specified as a petNOPETNominalPerson did not have a pet in the 7 days prior to illness or interviewDIAPETNominalPerson pet had diarrhoea in the 7 days prior to illness or interviewFARMLIVENominalPerson lived on a farm in the 7 days prior to illness or interviewFARMVISNominalPerson visited a farm in the 7 days prior to illness or interviewCALFTNominalPerson had contact with calvesCATTLENominalPerson had contact with dairy cattleBCATTLETNominalPerson had contact with beef cattleHORSETNominalPerson had contact with horsesPIGTNominalPerson had contact with pigsCHICKFMTNominalPerson had contact with chickensOTHFANIMNominalPerson had contact with other animalsMANURENominalPerson had contact with manure or fertilizer in the 7 days prior to illness or interviewNATIVENominalPerson had contact with native animals in the 7 days prior to illness or interviewKANGANominalPerson had contact with kangaroosKOALANominalPerson had contact with koalaREPTILENominalPerson had contact with reptileBIRDNATNominalPerson had contact with native birds
Salmonella Hillsborough Infection Risk Factors – Data Analysis Report 4OTHNATNominalPerson had contact with other native animalsOTHANIMNominalPerson cared for sick or injured animals in the 7 days prior to illness or interviewMAINSWATERNominalPerson drank mains water (treated water)RAINTANKNominalPerson drank untreated rainwaterRIVERWATNominalPerson drank untreated river waterWELLBORENominalPerson drank untreated bore waterRECACTNominalPerson swam in recreational water where they may have drunk water in the 7 daysprior to illness or interviewPUBPOOLNominalPerson swam in public poolPRIVPOOLNominalPerson swam in private poolRECRIVERNominalPerson swam in riverLAKENominalPerson swam in lakeOCEANNominalPerson swam in oceanRECOTHNominalPerson swam in other recreational waterBUSHNominalPerson spent recreational time in the bushPARKNominalPerson spent recreational time in a parkWILDPARKNominalPerson spent recreational time at a wildlife parkZOONominalPerson spent recreational time at a zooTRAVELNominalPerson travelled in the 7 days prior to illness or interviewFOODOUTNominalPerson ate food prepared outside the home in the 7 days prior to illness or interviewBURGERNominalPerson ate at a burger chainPIZZANominalPerson ate at a pizza chainCHICKENNominalPerson ate at a chicken fastfood chainFISHCHIPNominalPerson ate at a fish and chip shopBUFFETNominalPerson ate at a buffetRESTRNTNominalPerson ate at a restaurantHOMECOOKNominalPerson ate at someone else's houseLANGNominalIs a language other than English spoken at your home?ATSINominalPerson is of Aboriginal or Torres Strait Islander BackgroundHCCNominalPerson is covered by a healthcare cardOutcome VariableCase status is the outcome variable in the study with 100 cases and 211 controls.Table 2: Outcome variableCASE STATUSFrequencyPercentCumulative frequency Case10032.1532.15Control21167.85100.00Total311100.00
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