... 101AppendixDefinitionsofTermsThisappendixdefinesanumberoftechnicaltermsusedinthisreport.Thetermsarelistedinalphabeticalorder.SomeofthedefinitionsusedirectquotationsfromtheNSFGquestionnaire;thoseareshowninquotationmarksanditalics.Forconvenienceinwriting,thewomenwhowereinterviewedintheNSFGaresometimesreferredtoas‘‘respondents’’inthisappendix.ToassistusersoftheNSFGpublic-usecomputerdatafile ,the shortvariablenamefromthedatafile(upto8characters)isalsoshowninthedefinition.(Forexample,AGEAPR1,forAgeonApril1,1995;andHIEDUC,forEducationatinterview,etc.)AdditionaldetailsontheprecisespecificationsofsomeofthevariablesaregiveninAppendix1theUser’sGuidetotheNSFGpublic-usedatafiledocumentation.Additionalbirthsexpected—TherecodeADDEXPindicatesthenumberofchildrenawomanexpectstogivebirthtointhefuture,includingacurrentpregnancyifapplicable.Womenwhoweresterileorwhoweremarriedtosterilemenwereclassifiedasexpectingzeroadditionalbirths.Thosephysicallyabletohavebirthswereaskedwhetherthey,andtheircurrenthusbandorpartnerifapplicable,intendedtohaveanybabiesinthefuture ,and, ifso,howmany.Womenwhodidnotknowwhethertheyintendedtohaveanyfuturebirths,orwhodidnotknowaparticularnumbertheyintendedtohave,wereaskedforthesmallestandlargestnumberstheyexpectedtohave .The estimateofadditionalbirthsexpectedinthosecasesisanaverageofthesmallestandlargestnumbersgiven.Ageatbirth—TheAGEPREGrecodegivesthewoman’sageincompletedyears(forexample,2200–2299equalsage22)atthetimewheneachofherpregnanciesended.TheOUTCOMErecodeindicatestheprimaryoutcomeofeachpregnancy,assigningpriorityinthefollowingorder:livebirth,abortion,stillbirth,miscarriage,andectopicpregnancy.‘‘Ageatbirth’’asshowninthisreport’stablesisdefinedasAGEPREGwhenOUTCOMEequals‘‘livebirth.’’Thecategoriestypicallypresentedare:lessthan20years,20–24years,25–29years ,and3 0–44years.Ageatconception—TheAGECONrecode,‘‘ageattimeofconception,’’isusedinsometablesconcerningcontraceptivemethoduseandintendednessofpregnancies.Foreachcompletedpregnancy,AGECONisdefinedastherespondent’sageincompletedyearsattheapproximatetimewhenherpregnancywasconceived,regardlessofpregnancyoutcome.Ageatfirstmarriageandyearoffirstmarriage—TheFMAR1AGErecodegivesthewoman’sageincompletedyearsatfirstformal(legal)marriage.YearoffirstmarriageisbasedontheMARDAT01recode,whichgivesthedateincenturymonthsofawoman’sfirstformalmarriage.Ageatfirstsexualintercourse—Threedifferentdefinitionsofageatfirstintercourseareusedinthisreport:+Ageatfirstintercourseever(recode=VRY1STAG)+Ageatfirstintercourseaftermenarche+Ageatfirstvoluntaryintercourse(recode=VOL1AGE)Formostrespondents,thevaluesofthesevariablesarethesamebuttheymaydifferifherfirstintercoursewasbeforemenarcheorifitwasnotvoluntary.Allthreemeasuresarebasedprimarilyonaquestionasking:‘‘Thinkingabouttheveryfirsttimeinyourlifethatyouhadsexualintercoursewithaman,howoldwereyou?’ To determinethesecondandthirdmeasures,otherinformationisused :the MENARCHRrecode,whichspecifiesherageatfirstmenstrualperiod ,and itemsthatcapturewhetherthefirstintercoursewasvoluntaryornonvoluntary(seedefinitionofNonvoluntaryfirstsexualintercourse).VRY1STAG(ageatfirstintercourseever)isusedintables2 1and2 6–31.Intables26–31,itisusedasanindependentorpredictorvariablewhennumberofsexualpartnersisusedasthedependentvariable.‘‘Ageatfirstintercourseaftermenarche’’isusedasthedependentvariableintable20.VOL1AGE(ageatfirstvoluntaryintercourse)isusedintables2 3and2 4asanindependent(orpredictor)variable.(Consult1995NSFGPublicUseFileDocumentation,User’sGuide,Appendix1,forprecisespecificationsforthesemeasures.)Ageatinterview—Inthisreport,‘‘ageatinterview’’(recode=AGEAPR1)isclassifiedbasedontherespondent’sageasofApril1,1995,theestimatedmidpointoftheinterviewingperiod.Samplewomenwereeligibleforthe1995NSFGiftheywere15–44yearsofageonApril1,1995—thatis,iftheywerebornbetweenApril1,1950 ,and March31,1980.Exactageattimeofinterviewisalsointhedatafile(recode=AGER),butmaynotbeequaltoAGEAPR1inallcases.Ageoffirstpartner—Eachrespondentwhoeverhadvoluntary(vaginal)sexualintercoursewithamalepartnerwasaskedtheageincompletedyearsofherfirstvoluntarypartneratthetimeherfirstintercourseoccurred.Theword‘‘voluntary’’wasonlyusedinquestiontextwhentherespondenthadpreviouslyreportedthatherfirstintercoursewasnotvoluntary.Ageofyoungestchild/ageofchild The ‘ageoftheyoungestchild’’or‘‘ageofchild’’ispresentedintablesonchildcarearrangements.Agewasascertainedfromthehouseholdroster,whichcollectedtheage(inyears,ormonthsifunderoneyear),relationshiptotherespondent,andsexofeverymemberoftherespondent’shousehold.Householdmemberswhowerethewoman’snaturalchild,stepchild,orpartner’schildandwhowereunder13yearsofage,werethechildrenreferencedinthechildcareseries .The ageoftheyoungestsuchchildwasclassifiedas‘‘under5years’’or‘‘5–12years’’inthetables.Amountpaidperweekforchildcare—ThiswasascertainedfromaquestionaskingaboutthetotalchildcarepaymentforallchildrenunderagePage102[Series23,No.1913, ... WANTPART,respectively, and reflect the woman’sreports of the father’s attitudes toward the pregnancy at the time of conception.If the respondent said she did notknow whether she wanted to havea(nother) child then ... 109twoeventsiscalculatedbysubtractingthedateoffirstintercoursesincemenarchefromthedateoffirstmarriage.Iffirstintercourseaftermenarcheoccurredafterfirstmarriage,orbotheventsoccurredinthesamemonth,itisindicatedaccordinglyintable26.Monthspregnantwhenprenatalcarebegan—Forallpregnanciesendinginanywayotherthaninducedabortionin1991–95,womenwereaskedtoreportiftheyhadevervisitedadoctor,midwife,orclinicforprenatalcare.Thosewhoreportedanyprenatalcarewerethenaskedhowmanyweeksormonthspregnanttheywerewhentheyfirstwentforprenatalcare.ThePNCAREWKrecodeindicatesthenumberofweekspregnantatfirstprenatalvisit.Table83givesthepercentdistributionofPNCAREWKforallpregnanciesthatresultedinlivebirthin1991–95 .The categoriesshownare‘‘lessthan3months,’’‘‘3–4months,’ and ‘5monthsormoreornoprenatalcare.’’‘‘Lessthan3months’’isdefinedaslessthan13weeks,tobeconsistentwiththedefinitionofearly(firsttrimester)prenatalcareinpreviousreportsfromtheNSFG.Mother’seducation(recode=EDUCMOM)—‘‘Mother’seducation’’wasclassifiedaccordingtothehighestgradeofregularschoolorcollegecompletedbytherespondent’smotherormother-figure.ThismeasurediffersslightlyfrompastNSFGreportsthatwerebasedonaquestionaskingforeducationof‘‘mother’’or‘‘stepmother.’’TheCycle5versiondiffersbecausetheidentityofthemotherormother-figurewasascertainedinamorepreciseway:ifthechildhoodlivingarrangementsshowedthattherespondentlivedwithhernaturalmotheratsomepointandneverlivedwithafemaleparentotherthanthenaturalmother,thenthenaturalmotheristhepersonaboutwhomeducationwasasked.Otherwise ,the respondentwasasked:‘‘Who,ifanyone,doyouthinkofasthewomanwhomostlyraisedyouwhenyouwereateenager?’’Thepersonreportedbecomesthepersonaboutwhomeducationisasked.Respondentseligibleforthatquestionwereallowedtorespond‘‘nosuchperson,’ and 0.7percentofsamplecasesfellintothiscategory.Thiscategoryislabeled‘‘nomother-figureidentified’’inthetables.Anadditional4.3percentofinterviewedwomenhadmissingdataonmother’seducation,andthesevaluesfortheEDUCMOMrecodewereimputed.Nonvoluntaryfirstsexualintercourse—Thevoluntary/nonvoluntarystatusoffirstintercoursewasdeterminedfromtwoquestionsintheinterviewer-administeredinterview.First,respondentswereasked:‘‘LookingatthescaleonCardC-3,whichnumberwouldyousaycomesclosesttodescribinghowmuchyouwantedthatfirstsexualintercoursetohappen?Onthisscale,a1meansthatyoureallydidn’twantittohappenatthetime ,and a10meansthatyoureallywantedittohappen.’’Womenwhorespondedtothisquestionthattheirfirstintercoursewasarapeareclassifiedashavingnonvoluntaryfirstintercourse.Respondentswhoreportedanythingotherthan‘‘rape’’wereasked:‘‘Wouldyousaythenthatthisfirstsexualintercoursewasvoluntaryornotvoluntary?’’Respondentsanswering‘‘notvoluntary’’arealsoclassifiedashavingnonvoluntaryfirstintercourseforthetable(table21).Numberofhusbandsorcohabitingpartners—TherecodeFMARNOgivesthenumberoftimesawomanhasbeenlegallymarried.Womenwerealsoaskedthenumberofothercohabitingpartnerstheymayhavehad.Table37isbasedonthetotalnumberofhusbandsandcohabitingpartners,computedasfollows:FMARNO+(1ifcurrentlycohabiting)+(#ofothercohabitingpartners)Husbandswithwhomawomanalsocohabited(outsideofmarriage)arecountedonlyonce,ashusbands.Numberofmalesexualpartners—Eachwomanwhohadeverhadvoluntarysexualintercousewasaskedtoreportthenumberorrange(low-high)ofmaleswithwhomshehashadsexual(vaginal)intercourseinherlife,asofthedateofinterview.ShewasalsoaskedtoreporthernumberofmalesexualpartnerssinceJanuary1991(roughlythelast5years)andinthelast12months.Ifarangeofpartnerswasreported ,the numberofpartnerswascalculatedastheaverageofthelowandhighnumbers.Inthosefewcaseswheretherespondentreportedzeropartnersforthelowendoftherangeandonepartnerforthehighend,thenumberofpartnerswassetequaltoone.Respondentswhohadneverhadintercourseorwhohadonlyhad(first)nonvoluntaryintercoursewereassignedzero.Thereweretwoversionsofthisseriesofthreequestionsaboutnumberofmalesexualpartners.Thedescriptionaboveappliestotheversionintheinterviewer-administeredportionofthesurvey,andtheseresultsarepresentedintables27,29 ,and3 1.ThesequestionswererepeatedintheAudioCASI,orself-administered,portionofthesurvey,attheendoftheinterview.Eachpairofquestions(interviewer-administeredandself-administered)waswordedalmostidentically,althoughtheAudioCASIquestionsaskedforaspecificnumberanddidnotallowarangetobegiven.Also,thequestionsintheself-administeredportionwereprefacedbythefollowinginstruction:‘‘...