... 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:‘‘ ... 111Uptofourracialgroupscouldbechosen.Respondentswhoidentifiedthemselveswithmorethanoneracialgroupwereaskedtoselectonegroupthat‘‘bestdescribes’’them,andtheRACErecodereflectedthisresponse.Becauseoflimitedsamplesize,Asian,PacificIslander,Alaskannative ,and AmericanIndianwomenwerecombinedandpresentedinthisreportas‘‘Non-Hispanicother’’races.+Comparisonwithbirthcertificatedata—Thedataintable6ofthisreportshowthatfortheyears1991–94,theNSFGestimatesofthenumberofbirthsareveryclosetothebirthcertificatetotals,bothoverall,forindividualyears ,and forbirthstowhitewomen .The NSFGestimatesaresomewhatlowerforblackwomenandsomewhathigherforwomenof‘‘other’’racesthanthebirthcertificatedata.Thesedifferenceslargely(withinsamplingerror)canceleachotherout.Butthedataintable6suggestthatsomewomenwhoreportthattheyareof‘‘other’’races(AsianorPacificIslander,orAmericanIndianorAlaskannative)inasurveyliketheNSFGmaybeclassifiedaswhiteorblackbyathirdpartyfillingoutabirthcertificate.Inaddition,somewomenwhoidentifywithmorethanoneracialgroupmayidentifythemselvesprimarilywithaparticulargroup,butathirdpartymaynotchoosethatracialgroupifaskedtoclassifythembyrace.Theseissuesdonotappeartoaffectthecomparabilityofthetotalnumberofbirthsbyyearorothercharacteristics,whichshowverygoodagreementbetweentheNSFGandtheregisteredbirths.+InterpretationofdatabyraceandHispanicorigin—DataareshownbyraceandHispanicorigininthetablesbecauseNCHSisfrequentlyaskedtoprovidedataseparatelyforwhite,black,andHispanicwomen.Raceisassociatedwithanumberofindicatorsofsocialandeconomicstatus.Measuresofsocioeconomicstatus(forexample,educationandincome)arenotalwaysavailableforthepointintimewhentheeventbeingstudiedoccurred.Whilecharacteristicssuchaseducationandincomecanchangeovertime,raceandethnicitydonotchangesotheycanbeusedatallpointsintimeasproxiesforsocioeconomicstatus.Differencesamongwhite,black,andHispanicwomeninthephenomenapresentedinthetablesprimarilyreflectthelowerincomeandeducationallevelsofblackandHispanicwomen,theirmorelimitedaccesstohealthcareandhealthinsurance,thecommunitiesinwhichtheylive,andotherfactors(seereference14,tables49,53,81,173).Forsomerecentanalysesofdifferencesinbirthratesbyraceandorigin,seereferences1,15,40 ,and4 1.ReasonsforHIVtest—Allrespondentswhoreportedthattheyhadeverhadtheirbloodtestedforhumanimmunodeficiencyvirus(HIV),thevirusthatcausesAIDS,wereaskedthereasonsfortheirmostrecenttest.Theresponselistwasasfollows:+forahospitalizationorsurgicalprocedure+toapplyforhealthorlifeinsurance+becauseyouwerepregnantorbecauseitwaspartofprenatalcare+justtofindoutifyouwereinfected+becauseofareferralbyadoctor+otherreason(specify)Table86showsthepercentscitingspecificreasons,withthepercentsaddingtomorethan100becausesomewomengavemorethanonereasonfortheirHIVtest.Reasonsforsterilizingoperations—Table54showsreasonsreportedfortuballigations,hysterectomies ,and vasectomies.Foreachofhersterilizingoperations,therespondentwasasked:‘‘NowpleaselookatCardD-3whichlistssomereasonsthatwomensometimesgiveforhavingsterilizingoperations.Whichreasonorreasonsdoyoubelieveareclosesttoyourown?’’Womencouldchoosealloftheapplicableresponsesfromthefollowinglist:+Youhadallthechildrenyouwanted+Yourhusbandorpartneratthetimedidnotwantanymorechildren+Financialreasons,thatis,youcouldnotaffordanotherbaby+Medicalreasons+Reasonsrelatedtobirthcontrol+SomeotherreasonsforsterilizationThosementioning‘‘medicalreasons’’wereasked:‘‘PleaselookatCardD-4.Whichofthesemedicalreasonsdidyouhave?’’Theresponselist,againpermittingallapplicablereasonstobecoded,readasfollows:+Medicalproblemswithyourfemaleorgans+Pregnancywouldbedangeroustoyourhealth+Youwouldprobablyloseapregnancy+Youwouldprobablyhaveanunhealthychild+Someothermedicalreason(specify)Thosementioning‘‘reasonsrelatedtobirthcontrol’’intheoriginalquestionwereasked:‘‘Wasyourmethodofbirthcontroldangeroustoyourhealthordidyounotlikeyourmethodofbirthcontrolforotherreasons?’’Womenreportingmorethanonereasonfortheirsterilizingoperationwereaskedtoidentifytheirmainreason.Reasonsforvasectomies—Womenwereonlyaskedaboutreasonsforvasectomyifhercurrenthusbandorcohabitingpartnerhadhisvasectomyduringtheirrelationship .The questionsaskedaboutreasonsforvasectomyweregenerallysimilartothoseaskedforfemalesterilizationoperations.Theexceptionwasthatintheresponselistformedicalreasons,‘‘medicalproblemswithyourfemaleorgans’’wasreplacedwith‘‘HEhadahealthproblemthatrequiredtheoperation.’’Regionofresidence(atinterview) The REGIONrecodeclassifiesregionofresidenceattimeofinterviewintothefourmajorcensusregions:Northeast,Midwest,South,andWest.ThesePage112[Series23,No.19...