... 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:‘‘ ... and Hispanicwomen in the 1993 NHIS were includedin the NSFG. Some of the ‘‘white and other’’ women from the NHIS wereselected for the NSFG sample. Thus,black and Hispanic women were sampledat ... white and otherwomen for the NSFG. Sampled womenwho had moved since the NHIS interviewwere traced to their new address, and aninterviewer conducted the interview at the new address. The numbers,...