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<p>안녕하세요. 항상 많은 도움을 받고 있습니다.</p><p><span style="color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size:12pt; line-height: normal;">Cox proportional hazards regression model에서 r script를 </span><br></p><p><span style="color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size:12pt; line-height: normal;"><br></span></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">coxph(Surv(OS.m, Death) ~ Smoking, data=KA) </span></font><br></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">했습니다.</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">결과가 </span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">> coxph(Surv(OS.m, Death) ~ Smoking, data=KA) </span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">Call:</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">coxph(formula = Surv(OS.m, Death) ~ Smoking, data = KA)</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"><br></span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"><br></span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"> coef exp(coef) se(coef) z p</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">SmokingNo -0.781 0.458 0.381 -2.05 0.04</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">SmokingYes -0.744 0.475 0.362 -2.06 0.04</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"><br></span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">Likelihood ratio test=3.54 on 2 df, p=0.17</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">n= 769, number of events= 281 </span></font></p><p></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"> (14 observations deleted due to missingness)</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">결과가 위와 같이 나왔습니다. smoking의 변수는 Yes or No만 있었습니다.</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">그러면 비흡연자의 생존위험도도 0.458, 흡연자도 0.475라는 결과인듯합니다만,</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;">말이 안되는 것 같아서요 제가 무엇을 잘못했을까요?</span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"><br></span></font></p><p><font color="#000000" face="Times New Roman" size="3"><span style="line-height: normal;"><br></span></font></p>
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묻고 답하기
Cox proportional hazards regression model
YGEun
추천 0
조회 154
16.02.16 06:33
댓글 2
다음검색
첫댓글 Yes, No말고 딴게 있는거 아닌가요? 이상하네요...
답변 감사합니다. 딴게 (빈칸)있었습니다. 지적해주셔서 감사합니다. 잘 해결되었습니다.