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Survival Analysis
๋ฌธ์„œ์˜ ์ œ๋ชฉ
Glioma Treatment
๋‚˜๋ˆ”๊ณ ๋”• B, 42pt




์ •ํ•œ๋นˆ ์ด๊ณ„ํ™
์ด์€์žฌ ์ตœ์œคํ˜•
                    . ์„ค์น˜ํ•˜๊ธฐ
1 โ€œWhat is Glioma?โ€

2 Glioma data analysis

3 Conclusion
โ€œWhat is
  Glioma?โ€
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)


     1   Glioma์˜ ์ •์˜

         โ€ข ๋‡Œ๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ์กฐ์ง




         โ€ข Glioma




         โ€ข ์ข…์–‘์˜ ๊ตฌ๋ถ„




                        4
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)




                    5
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)


     2   Glioma์˜ ํŠน์ง•

         โ€ข ์งˆ๋ณ‘์˜ ์–‘์ƒ
                      ์นจํˆฌ

           ์ˆ˜์ˆ ๋กœ ์™„์ „ ์ œ๊ฑฐํ•˜๋Š” ๊ฒƒ์ด ํž˜๋“ค๋‹ค (๋ฐฉ์‚ฌ์„  ์น˜๋ฃŒ, ํ•ญ์•”ํ™”ํ•™ ์น˜๋ฃŒ ๋ณ‘ํ–‰)



         โ€ข ๋ฐœ๋ณ‘ ํ˜„ํ™ฉ

                           10๋งŒ๋ช… ๋‹น ์•ฝ 2๋ช…์ด ๋ฐœ์ƒ




                                                     6
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)


     3   Glioma์˜ ์ž„์ƒ์  ํŠน์ง•

         โ€ข ์ผ๋ฐ˜ ์ฆ์ƒ




           ๋‘ํ†ต

            ์‹ ๊ฒฝ๊ต์ข… ํ™˜์ž์˜ ์•ฝ 1/3์ด ์ดˆ๊ธฐ ์ฆ์ƒ

         โ€ข ๊ตญ์†Œ ์ฆ์ƒ




                                    7
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)


     4   Glioma์˜ ์ง„๋‹จ




                      8
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)
                       CT                   MRI




        ํ•˜์–—๊ฒŒ ๋‚˜์˜ค๋Š” ๋‘๊ฐœ๊ณจ          ๊ฒ€๊ฒŒ ๋‚˜์˜ค๋Š” ๋‘๊ฐœ๊ณจ

       ์™ผ์ชฝ ์œ—๋ถ€๋ถ„์˜ ๊ฒ€์ • ๋ถ€๋ถ„         ์™ผ์ชฝ ์œ—๋ถ€๋ถ„์˜ ํฐ ๋ถ€๋ถ„
          (์ข…์–‘ ๋ฉ์–ด๋ฆฌ)             (์ข…์–‘ ๋ฉ์–ด๋ฆฌ)

               MRI ์‚ฌ์ง„์—์„œ ๋” ํฌ๊ฒŒ ๋ฐœ๊ฒฌ

                                                  9
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)


     5   Glioma์˜ ๋ถ„๋ฅ˜ (WHO ๊ธฐ์ค€)



          โ€ข Low-grade Glioma




          โ€ข High-grade Glioma
            Grade III / GBM( Grade IV) (์น˜๋ฃŒ ํ›„ ์ƒ์กด๊ธฐ๊ฐ„ 50์ฃผ ์ดํ•˜)




                                                            10
01                Glioma(์‹ž๊ฒฝ๊ต์ข…)




     low-grade glioma /GBM       GBM patient MRI scanning




                                                            11
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)


     6 Glioma์˜ ์น˜๋ฃŒ
       Grade II Glioma๋ถ€ํ„ฐ๋Š” ์ฃผ๋ณ€ ์ •์ƒ์ ์ธ ์กฐ์ง์„ ์นจ๋ฒ” (์ˆ˜์ˆ ๋กœ๋งŒ ์™„์น˜ ๋ถˆ๊ฐ€)




                        ์ˆ˜์ˆ ์ 
                         ์น˜๋ฃŒ




                        RIT
                      (๋ฐฉ์‚ฌ์„ ์น˜๋ฃŒ)
                                   Radioimmunotherapy


                                                        12
01   Glioma(์‹ž๊ฒฝ๊ต์ข…)




              ๋ฐฉ์‚ฌ์„  ์น˜๋ฃŒ ์ „ํ›„ ๋น„๊ต
                             13
Glioma data
    Analysis
02   Glioma data Analysis


     1. >glioma




                            15
02   Glioma data Analysis


     2. >?glioma
       โ€ข ์„ค๋ช…
         Yttrium-90-biotin์„ ํˆฌ์•ฝํ•˜๋Š” ๋ฐฉ์‹์˜ ๋ฐฉ์‚ฌ์„ฑ ๋ฉด์—ญ์น˜๋ฃŒ๋ฅผ ๋ฐ›๋Š”
         ์•…์„ฑ glioma ํ™˜์ž์— ๋Œ€ํ•š ๋žœ๋คํ™”๋˜์ง€ ์•Š์€ ํŒŒ์ผ๋Ÿฟ ์—ฐ๊ตฌ (2002)

       โ€ข ๋ฐ์ดํ„ฐ ํฌ๋งท
         ๋‹ค์Œ 7๊ฐ€์ง€ ๋ณ€์ˆ˜์— ๋Œ€ํ•š 37๋ช…์˜ ํ™˜์ž์˜ ๊ด€์ฐฐ๊ฐ’

            โ‘  no,         ํ™˜์ž๋ฒˆํ˜ธ
            โ‘ก age         ํ™˜์ž ๋‚˜์ด
            โ‘ข sex         ํ™˜์ž ์„ฑ๋ณ„ (M-๋‚จ์„ฑ / F-์—ฌ์„ฑ)
            โ‘ฃ histology   ํ™˜์ž ์ƒํƒœ ๋”ฐ๋ฅธ glioma ๋“ฑ๊ธ‰
                           (GBM-grade IV / Grade 3-grade III)
            โ‘ค time        ์‹คํ—˜์‹œ์ž‘-์ข…๊ฒฐ ๊ฐœ์›”์ˆ˜
            โ‘ฅ event       ๋ฐ์ดํ„ฐ ๊ฑธ๋Ÿฌ๋‚ด๋Š” ๋„๊ตฌ
                           (False-์™„์น˜,์ƒ์กด / True-์‚ฌ๋ง)
            โ‘ฆ group       RIT(๋ฐฉ์‚ฌ๋Šฅ๋ฉด์—ญ์น˜๋ฃŒ) / Control(๋Œ€์กฐ๊ตฎ)




                                                                16
02   Glioma data Analysis


     3. ๋ฐ์ดํ„ฐ ๋ถ„์„


      โ€ข Survival fit plot ๊ทธ๋ฆฌ๊ธฐ




      โ€ข Logrank test ์‹คํ–‰
        ์•ฝ๋ฌผ๊ณผ ์น˜๋ฃŒ๊ฐ„์˜ ์‹ž๋ขฐ์„ฑ, ์ƒ๊ด€๊ด€๊ณ„ ๋ถ„์„




                                17
Glioma data Analysis
02
     > layout(matrix(1:2, ncol = 2))
     > g3 <- subset(glioma, histology == "Grade3")
     > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1))
     > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1))
     > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 2.1711, p-value = 0.02877
     alternative hypothesis: two.sided

     > gbm <- subset(glioma, histology == "GBM")
     > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1))
     > legend("topright", legend=c("Control","Treated"),lty=c(2,1))
     > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 3.2215, p-value = 0.0001588
     alternative hypothesis: two.sided

     > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B = 10000))

         Approximative Logrank Test

     data: Surv(time, event) by
           group (Control, RIT)
           stratified by histology
     Z = 3.6704, p-value < 2.2e-16
     alternative hypothesis: two.sided



                                                                                                               18
Glioma data Analysis
02
     > g3 <- subset(glioma, histology == "Grade3")

     > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1))

     > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1))

     > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 2.1711, p-value = 0.02877
     alternative hypothesis: two.sided




                                                                                โ†’ g3

        g3 data โ†’ RIT ์‹คํ–‰์—ฌ๋ถ€(group)์— ๋”ฐ๋ฅธ ์‹คํ—˜๊ธฐ๊ฐ„(time)๊ณผ ์ƒ์กด์—ฌ๋ถ€(event)์—
                  ๊ด€ํ•š survival fit plot ๊ทธ๋ฆผ (legend ์„ค์ •)

        Survival test (logrank test)

           p-value = 0.02877 < 0.05
                    (ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜โ†’RIT๊ฐ€ Glioma grade 3 ์น˜๋ฃŒ์— ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค )



                                                                                                     19
Glioma data Analysis
02
     > gbm <- subset(glioma, histology == "GBM")

     > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1))

     > legend("topright", legend=c("Control","Treated"),lty=c(2,1))

     > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 3.2215, p-value = 0.0001588
     alternative hypothesis: two.sided




                                                                        โ†’ gbm

        gbm data โ†’ RIT ์‹คํ–‰์—ฌ๋ถ€(group)์— ๋”ฐ๋ฅธ ์‹คํ—˜๊ธฐ๊ฐ„(time)๊ณผ ์ƒ์กด์—ฌ๋ถ€(event)์—
                 ๊ด€ํ•š survival fit plot ๊ทธ๋ฆผ (legend ์„ค์ •)

        Survival test (logrank test)

           p-value = 0.0001588 < 0.05
                    (ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜โ†’RIT๊ฐ€ Glioma GBM ์น˜๋ฃŒ์— ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค )



                                                                                                     20
Glioma data Analysis
02
     > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B =
     10000))

         Approximative Logrank Test

     data: Surv(time, event) by
           group (Control, RIT)
           stratified by histology
     Z = 3.6704, p-value < 2.2e-16
     alternative hypothesis: two.sided




           โ†’ ํ†ต๊ณ„์  TEST๋ฅผ ์‹คํ–‰ํ•˜๊ธฐ์—” ๋„ˆ๋ฌด ์ ์€ ํ‘œ๋ณธ์ˆ˜

        10000๋ฒˆ ๋ณต์›์ถ”์ถœ ํ•˜์—ฌ logrank test ์‹คํ–‰
        p-value < 2.2e-16 < 0.05
                   (ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜โ†’RIT๊ฐ€ Glioma ์น˜๋ฃŒ์— ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค )




                                                                                                       21
02   Glioma data Analysis

     4. ๊ทธ๋ž˜ํ”„ ๋ถ„์„




                              โ†’ ์‚ฌ๋ง์ž ๋ฐœ์ƒ์‹œ ๊ฐ์†Œ (๊ณ„๋‹จ๋ชจ์–‘)
                              โ†’ ์น˜์œ ๋œ ํ™˜์ž: ์ˆ˜์ง์œผ๋กœ ๊ทธ์€ ๋งˆ๋””

                            (X์ถ•) ์‹คํ—˜ ์‹œ์ž‘์‹œ์ ๋ถ€ํ„ฐ์˜ ๊ฒฝ๊ณผ ๊ฐœ์›”์ˆ˜

                            (์™ผ์ชฝ ๊ทธ๋ž˜ํ”„)
                              Grade III ํ™˜์ž๋“ค์˜ survival plot
                              ์‹คํ—˜๊ตฎ (1.0โ†’0.8) / ๋Œ€์กฐ๊ตฎ(1.0 โ†’์•ฝ 0.3)

                            (์˜ค๋ฅธ์ชฝ ๊ทธ๋ž˜ํ”„)
                              Grade IV ํ™˜์ž๋“ค์˜ survival plot
                              ์ข…๋ฃŒ์‹œ์  ์ƒ์กด๋ฅ ์ด Grade III๋ณด๋‹ค ๋‚ฎ์Œ
                              ์‹คํ—˜๊ตฎ (1.0 โ†’60๊ฐœ์›” 0.4)
                              ๋Œ€์กฐ๊ตฐ(1.0 โ†’30๊ฐœ์›” ์ด๋‚ด ๋ชจ๋‘ ์‚ฌ๋ง)




                                                                22
Conclusion
03   Conclusion




       Glioma       โ€ข์ •์˜ / ํŠน์ง• / ๋ถ„๋ฅ˜
                    โ€ข์ง‚๋‹จ / ์น˜๋ฃŒ
          ?

       Glioma Data โ€ขSurvival fit plot
        Analysis โ€ขLogrank test


                                        24
03   Conclusion




                  25
03   Conclusion




                  26
03   Conclusion




                  27
03   Conclusion



                   ์ˆ˜์ˆ ์ 
                    ์น˜๋ฃŒ




       ๋‡Œ์ข…์–‘์€ ๋ถˆ์น˜๋ณ‘?
                    RIT
                  (๋ฐฉ์‚ฌ์„ ์น˜๋ฃŒ)




                            28
๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค

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Survival Analysis: Glioma Treatment

  • 1. Survival Analysis ๋ฌธ์„œ์˜ ์ œ๋ชฉ Glioma Treatment ๋‚˜๋ˆ”๊ณ ๋”• B, 42pt ์ •ํ•œ๋นˆ ์ด๊ณ„ํ™ ์ด์€์žฌ ์ตœ์œคํ˜• . ์„ค์น˜ํ•˜๊ธฐ
  • 2. 1 โ€œWhat is Glioma?โ€ 2 Glioma data analysis 3 Conclusion
  • 3. โ€œWhat is Glioma?โ€
  • 4. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 1 Glioma์˜ ์ •์˜ โ€ข ๋‡Œ๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ์กฐ์ง โ€ข Glioma โ€ข ์ข…์–‘์˜ ๊ตฌ๋ถ„ 4
  • 5. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 5
  • 6. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 2 Glioma์˜ ํŠน์ง• โ€ข ์งˆ๋ณ‘์˜ ์–‘์ƒ ์นจํˆฌ ์ˆ˜์ˆ ๋กœ ์™„์ „ ์ œ๊ฑฐํ•˜๋Š” ๊ฒƒ์ด ํž˜๋“ค๋‹ค (๋ฐฉ์‚ฌ์„  ์น˜๋ฃŒ, ํ•ญ์•”ํ™”ํ•™ ์น˜๋ฃŒ ๋ณ‘ํ–‰) โ€ข ๋ฐœ๋ณ‘ ํ˜„ํ™ฉ 10๋งŒ๋ช… ๋‹น ์•ฝ 2๋ช…์ด ๋ฐœ์ƒ 6
  • 7. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 3 Glioma์˜ ์ž„์ƒ์  ํŠน์ง• โ€ข ์ผ๋ฐ˜ ์ฆ์ƒ ๋‘ํ†ต ์‹ ๊ฒฝ๊ต์ข… ํ™˜์ž์˜ ์•ฝ 1/3์ด ์ดˆ๊ธฐ ์ฆ์ƒ โ€ข ๊ตญ์†Œ ์ฆ์ƒ 7
  • 8. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 4 Glioma์˜ ์ง„๋‹จ 8
  • 9. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) CT MRI ํ•˜์–—๊ฒŒ ๋‚˜์˜ค๋Š” ๋‘๊ฐœ๊ณจ ๊ฒ€๊ฒŒ ๋‚˜์˜ค๋Š” ๋‘๊ฐœ๊ณจ ์™ผ์ชฝ ์œ—๋ถ€๋ถ„์˜ ๊ฒ€์ • ๋ถ€๋ถ„ ์™ผ์ชฝ ์œ—๋ถ€๋ถ„์˜ ํฐ ๋ถ€๋ถ„ (์ข…์–‘ ๋ฉ์–ด๋ฆฌ) (์ข…์–‘ ๋ฉ์–ด๋ฆฌ) MRI ์‚ฌ์ง„์—์„œ ๋” ํฌ๊ฒŒ ๋ฐœ๊ฒฌ 9
  • 10. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 5 Glioma์˜ ๋ถ„๋ฅ˜ (WHO ๊ธฐ์ค€) โ€ข Low-grade Glioma โ€ข High-grade Glioma Grade III / GBM( Grade IV) (์น˜๋ฃŒ ํ›„ ์ƒ์กด๊ธฐ๊ฐ„ 50์ฃผ ์ดํ•˜) 10
  • 11. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) low-grade glioma /GBM GBM patient MRI scanning 11
  • 12. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) 6 Glioma์˜ ์น˜๋ฃŒ Grade II Glioma๋ถ€ํ„ฐ๋Š” ์ฃผ๋ณ€ ์ •์ƒ์ ์ธ ์กฐ์ง์„ ์นจ๋ฒ” (์ˆ˜์ˆ ๋กœ๋งŒ ์™„์น˜ ๋ถˆ๊ฐ€) ์ˆ˜์ˆ ์  ์น˜๋ฃŒ RIT (๋ฐฉ์‚ฌ์„ ์น˜๋ฃŒ) Radioimmunotherapy 12
  • 13. 01 Glioma(์‹ž๊ฒฝ๊ต์ข…) ๋ฐฉ์‚ฌ์„  ์น˜๋ฃŒ ์ „ํ›„ ๋น„๊ต 13
  • 14. Glioma data Analysis
  • 15. 02 Glioma data Analysis 1. >glioma 15
  • 16. 02 Glioma data Analysis 2. >?glioma โ€ข ์„ค๋ช… Yttrium-90-biotin์„ ํˆฌ์•ฝํ•˜๋Š” ๋ฐฉ์‹์˜ ๋ฐฉ์‚ฌ์„ฑ ๋ฉด์—ญ์น˜๋ฃŒ๋ฅผ ๋ฐ›๋Š” ์•…์„ฑ glioma ํ™˜์ž์— ๋Œ€ํ•š ๋žœ๋คํ™”๋˜์ง€ ์•Š์€ ํŒŒ์ผ๋Ÿฟ ์—ฐ๊ตฌ (2002) โ€ข ๋ฐ์ดํ„ฐ ํฌ๋งท ๋‹ค์Œ 7๊ฐ€์ง€ ๋ณ€์ˆ˜์— ๋Œ€ํ•š 37๋ช…์˜ ํ™˜์ž์˜ ๊ด€์ฐฐ๊ฐ’ โ‘  no, ํ™˜์ž๋ฒˆํ˜ธ โ‘ก age ํ™˜์ž ๋‚˜์ด โ‘ข sex ํ™˜์ž ์„ฑ๋ณ„ (M-๋‚จ์„ฑ / F-์—ฌ์„ฑ) โ‘ฃ histology ํ™˜์ž ์ƒํƒœ ๋”ฐ๋ฅธ glioma ๋“ฑ๊ธ‰ (GBM-grade IV / Grade 3-grade III) โ‘ค time ์‹คํ—˜์‹œ์ž‘-์ข…๊ฒฐ ๊ฐœ์›”์ˆ˜ โ‘ฅ event ๋ฐ์ดํ„ฐ ๊ฑธ๋Ÿฌ๋‚ด๋Š” ๋„๊ตฌ (False-์™„์น˜,์ƒ์กด / True-์‚ฌ๋ง) โ‘ฆ group RIT(๋ฐฉ์‚ฌ๋Šฅ๋ฉด์—ญ์น˜๋ฃŒ) / Control(๋Œ€์กฐ๊ตฎ) 16
  • 17. 02 Glioma data Analysis 3. ๋ฐ์ดํ„ฐ ๋ถ„์„ โ€ข Survival fit plot ๊ทธ๋ฆฌ๊ธฐ โ€ข Logrank test ์‹คํ–‰ ์•ฝ๋ฌผ๊ณผ ์น˜๋ฃŒ๊ฐ„์˜ ์‹ž๋ขฐ์„ฑ, ์ƒ๊ด€๊ด€๊ณ„ ๋ถ„์„ 17
  • 18. Glioma data Analysis 02 > layout(matrix(1:2, ncol = 2)) > g3 <- subset(glioma, histology == "Grade3") > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1)) > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 2.1711, p-value = 0.02877 alternative hypothesis: two.sided > gbm <- subset(glioma, histology == "GBM") > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1)) > legend("topright", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 3.2215, p-value = 0.0001588 alternative hypothesis: two.sided > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B = 10000)) Approximative Logrank Test data: Surv(time, event) by group (Control, RIT) stratified by histology Z = 3.6704, p-value < 2.2e-16 alternative hypothesis: two.sided 18
  • 19. Glioma data Analysis 02 > g3 <- subset(glioma, histology == "Grade3") > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1)) > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 2.1711, p-value = 0.02877 alternative hypothesis: two.sided โ†’ g3 g3 data โ†’ RIT ์‹คํ–‰์—ฌ๋ถ€(group)์— ๋”ฐ๋ฅธ ์‹คํ—˜๊ธฐ๊ฐ„(time)๊ณผ ์ƒ์กด์—ฌ๋ถ€(event)์— ๊ด€ํ•š survival fit plot ๊ทธ๋ฆผ (legend ์„ค์ •) Survival test (logrank test) p-value = 0.02877 < 0.05 (ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜โ†’RIT๊ฐ€ Glioma grade 3 ์น˜๋ฃŒ์— ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค ) 19
  • 20. Glioma data Analysis 02 > gbm <- subset(glioma, histology == "GBM") > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1)) > legend("topright", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 3.2215, p-value = 0.0001588 alternative hypothesis: two.sided โ†’ gbm gbm data โ†’ RIT ์‹คํ–‰์—ฌ๋ถ€(group)์— ๋”ฐ๋ฅธ ์‹คํ—˜๊ธฐ๊ฐ„(time)๊ณผ ์ƒ์กด์—ฌ๋ถ€(event)์— ๊ด€ํ•š survival fit plot ๊ทธ๋ฆผ (legend ์„ค์ •) Survival test (logrank test) p-value = 0.0001588 < 0.05 (ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜โ†’RIT๊ฐ€ Glioma GBM ์น˜๋ฃŒ์— ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค ) 20
  • 21. Glioma data Analysis 02 > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B = 10000)) Approximative Logrank Test data: Surv(time, event) by group (Control, RIT) stratified by histology Z = 3.6704, p-value < 2.2e-16 alternative hypothesis: two.sided โ†’ ํ†ต๊ณ„์  TEST๋ฅผ ์‹คํ–‰ํ•˜๊ธฐ์—” ๋„ˆ๋ฌด ์ ์€ ํ‘œ๋ณธ์ˆ˜ 10000๋ฒˆ ๋ณต์›์ถ”์ถœ ํ•˜์—ฌ logrank test ์‹คํ–‰ p-value < 2.2e-16 < 0.05 (ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜โ†’RIT๊ฐ€ Glioma ์น˜๋ฃŒ์— ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค ) 21
  • 22. 02 Glioma data Analysis 4. ๊ทธ๋ž˜ํ”„ ๋ถ„์„ โ†’ ์‚ฌ๋ง์ž ๋ฐœ์ƒ์‹œ ๊ฐ์†Œ (๊ณ„๋‹จ๋ชจ์–‘) โ†’ ์น˜์œ ๋œ ํ™˜์ž: ์ˆ˜์ง์œผ๋กœ ๊ทธ์€ ๋งˆ๋”” (X์ถ•) ์‹คํ—˜ ์‹œ์ž‘์‹œ์ ๋ถ€ํ„ฐ์˜ ๊ฒฝ๊ณผ ๊ฐœ์›”์ˆ˜ (์™ผ์ชฝ ๊ทธ๋ž˜ํ”„) Grade III ํ™˜์ž๋“ค์˜ survival plot ์‹คํ—˜๊ตฎ (1.0โ†’0.8) / ๋Œ€์กฐ๊ตฎ(1.0 โ†’์•ฝ 0.3) (์˜ค๋ฅธ์ชฝ ๊ทธ๋ž˜ํ”„) Grade IV ํ™˜์ž๋“ค์˜ survival plot ์ข…๋ฃŒ์‹œ์  ์ƒ์กด๋ฅ ์ด Grade III๋ณด๋‹ค ๋‚ฎ์Œ ์‹คํ—˜๊ตฎ (1.0 โ†’60๊ฐœ์›” 0.4) ๋Œ€์กฐ๊ตฐ(1.0 โ†’30๊ฐœ์›” ์ด๋‚ด ๋ชจ๋‘ ์‚ฌ๋ง) 22
  • 24. 03 Conclusion Glioma โ€ข์ •์˜ / ํŠน์ง• / ๋ถ„๋ฅ˜ โ€ข์ง‚๋‹จ / ์น˜๋ฃŒ ? Glioma Data โ€ขSurvival fit plot Analysis โ€ขLogrank test 24
  • 25. 03 Conclusion 25
  • 26. 03 Conclusion 26
  • 27. 03 Conclusion 27
  • 28. 03 Conclusion ์ˆ˜์ˆ ์  ์น˜๋ฃŒ ๋‡Œ์ข…์–‘์€ ๋ถˆ์น˜๋ณ‘? RIT (๋ฐฉ์‚ฌ์„ ์น˜๋ฃŒ) 28