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Retired NBME 24 Answers

nbme24/Block 1/Question#15 (reveal difficulty score)
Results of a 5-year screening program for HIV ...
5% 🔍 / 📺 / 🌳 / 📖
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submitted by youssefa(162)
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So rumbne fo essac whti tipesoiv royegslo irgund tnk"eia" repssetenr earpneevlc and oldush ton be uoaectndc for nhwe cantliagclu pountaliop at s.irk oitPounpal at skir = lTato ptainoplou - .ealeevcpnr gioDn tat,h ums up eht launan dceicsneni flte = 400 + 052 + 502 + 003 + 003 = 0.105

pAypgiln ienccenid laomurf = (0-,/)000011040500 = 2.50 eovr a tolta fo 5 yreas.

unalAn = 5.05/2 = .5%00

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submitted by karljeon(140)
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I odn't owkn fi treeh is na inqeouta ofr hts,i btu I slacayibl upmdpe tou vryee osdiiniv orssca eht tbale to tge %5~ no ge.aavre

Hree tyeh a:er4 00 / 0,060 = .527060 0 / ,0560 = 00.40 035 / ,5503 = 00.03650 / ,5050 = .090055 2 / 8040, = 005.2

The evragae of eshet s% fro all hte erays = S5.o %85. htat's leocs hneogu ot %.5

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seagull  godo kowr. I udnfo ihst otsqiune ynoingan adn vage pu dgino seoth sdneniogcir the utoanm fo imet ew rea vie.ng +4
vshummy  Well sjut ’otdn udneilc eht akntie e.yra.. aueebcs that mssdee em u.p. +17
_yeetmasterflex  owH dulow we eavh wnnok tno ot inlucde eth ktiaen ar?ey omrF eraagev *lan*u*na* eccin?edin +
lamhtu  Do tno diuenlc nketia aery ubascee eht iesutnoq mste is snkiga garevae naalun .ecnnidice eTh 4000 esspotiiv ta ktniea olcdu vhae drueiaqc IHV eevehn,wr tno tujs ni teh tals ea.yr +9
neels11  llialetry int'dd tknih theer wsa na auactl yaw to fguier hsit o. uutbt my thtghuo cposers :asw yaok deecniinc semna NEW .cssea so hte nnalau eravage at hte den of 5 ryesa doluw be: #( fo WNE eoppel that sdtete itsopevi ta the edn of arye 5) (# / of popele ta that eerw ta ksri at hte igeinngnb of ryae 5) ;t-l-&- aka at het nde fo reay /5 2550040 = 45.9% laos fi uoy lkoo ta ayre :5 llo'uy ese taht the at isrk nooptlipua is 0048 whne 030 wen asecs eewr dfonu eht reay fbereo. 5050 ta teh nde fo ayre 4 IUMSN teh 030 enw eassc at het dne of eary 4 dlosuh give uoy 7054 as het ewn loppoaniut at irk.s btu cetnoi taht edn of eyar 5 we ehav 800.4 kid if htta enasm 50 epoepl wree fsela piiestovs oefebr ro 05 ppeoel erew ddade ubt in iidcnecne etirtsd/c/bteahh dt'no trmits at'e idnk of ikle RWDOLU ID 170.2 aisnmsug aeverag uaannl ncdniieec si het aesm sa tieculuvam icndecein ti sh asw tujs a bunch of wdor vimto. syror fi ti asw elbbaneuar to woollf +

A related discussion (on a question from NBME 21) is here: https://nbmeanswers.com/exam/nbme21/714

+2/- csalib2(4)

The quickest way to do this is to add all the numerator ... = 1500. Then Divide by both year and susceptible population =1500 / (5*6000) = 5%.

+2/- peqmd(75)

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submitted by jotajota94(14)
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cdeeicnin = beumnr of nwe asces/ ewn aes+cs latpunopio ta k.sri ewn sasec= 02.5 leoePp at rski ahtt eyar 5005 lii(ucndng nwe cssa.e In eon ntpoi yeth ewer a nipulaopto at krsi) 25/0 55=00 .49%

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submitted by felxordigitorum(12)
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dleEcux hte itneak e.yra dAd lal eth isipotev telsusr 0+52+00302+5030+(040 = )005.1 iDedvi 1050 by het ttalo unremb of peiatnst ofrm hte artts fo eth ccininede doripe, eary ,1 so 0060 ;---g&t 10/00500=26.0,5 hist si the agervae scaosr lla 5 are.ys For ,aanlnu ivddei 0.25 yb het rnebmu fo ,esayr 5 -g;t&- /2.055 = .500 -tg-&; %5.

at'Ths woh I otg it.

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submitted by sabistonsurgery(5)
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nIdnciece is ctpialyyl ueacdltcla as a bnermu seedidsa epr sedxeop opliaonupt rpe tniu ,mtie sauylul ery.a oFr aceh ,year viided eth poelep ndu,of by the ploeep xe.posde Yuo rarive at fgreius rf cahe year einbg %,4 %5 and %6, eaegvar inbge %5.

:Q hWy tno ntcuo kiaten reya orf hchiw het ieieccndn smees to eb ?04%

nsA: oS 'athst teh ktrci fo het itu.onesq TI msees to lpmiy eht ekatin yare aols ahs 0004 nwe csse,a but siht 'nsti eienc,idnc isht is !elcarenvpe hWat handpeep here asw ttha teh loitppanuo of 1000,0 saw ton ienbg credense fro DSIA. Tnhe ouy stetdra eht rnngcseei orrag.mp

caiyylplT ni any rcsieegnn rrmago,p ouy wlil ibehlssta het iesbealn enpeelarvc of het aeeisds by eitngts lal fo the enlarge .nlupoiopta uoY fidn 0400 ewn ,sseac ubt esthe ewer ujts etuetdedcn ea.css uoY xcelued tmhe mofr uryo iigotnornm. rFo the xetn ,yaer yuo ekep a tchaw on het 0060 etlf, of whhic 004 dleoevp IA.DS ouY teulalcac cniiedcen for iths arye sa 7.6% nda delecux heets 004 mrfo teh extn yera adn os on.

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submitted by sweetsummerblowout(0)
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sodcoidt.c/1t1ets0obhsytet/rmu1/p1ahettrlmaherp/pseti--essl1/sl-ssan.t:at0

The hcart no tshi eits hsswo taw/rleaeruepb/Topah/ gtcori.(e)eectvnar h Tsi iqnotsue kssa olo"ildkieh fo ingisms na at"cosioisna - hwchi asillbacy easnm waht si het asfel tseivoip ,etar hwchi is eht oenifiitdn fo yTappae/hl I rr.reo utsinQeo setm asetst p,5l0.ah=0a chwih si .5%

Beta is peyT II rrre,o and odluw be 1%0 fs(lae vaeeitg.n) 9%0 would eb owrPe b1-)ae(t

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submitted by guillo12(58)
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I dnt'o know eth uianqteo rfo ih,st btu I did his:t ehT msu fo ednienicc erp eary/ eht sum fo rmeunb nirmeiaga ni iap.nlotopu o.S. . 805,0218,00/ = 25.080 ro %25.

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