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µ“√“ß 11.6  °“√‡≈◊Õ°„™â ∂‘µ‘ ”À√—∫°“√«‘®—¬‡™‘ß∑¥≈Õß


                                                           ª√–‡¿∑¢âÕ¡Ÿ≈ (Outcome)
                        «—µ∂ÿª√– ß§å
                                         Categorical    Ordinal     Continuous      Time to event

                     ‡ª√’¬∫‡∑’¬∫      Chi-square       Rank sum    t test        Log-rank
                     ª√–™“°√ 2 °≈ÿà¡  Fisherûs         test                      Cox proportional
                     ∑’ˇªìπÕ‘ √–µàÕ°—π  Z test (Proportion)                     hazards regression
                                                2
                     ‡ª√’¬∫‡∑’¬∫ª√–™“°√ McNemar  c     Sign-rank   t test        Conditional
                     2 °≈ÿà¡∑’ˉ¡à‡ªìπ                 test                      proportional

                     Õ‘ √–µàÕ°—π                                                 hazards regression
                     ‡ª√’¬∫‡∑’¬∫ª√–™“°√ Chi-square     Kruskal-    One way       Cox proportional
                     ¡“°°«à“ 2 °≈ÿà¡                   wallis       ANOVA        hazards regression

                     ∑’ˇªìπÕ‘ √–µàÕ°—π
                     ‡ª√’¬∫‡∑’¬∫ª√–™“°√ Cochran Q      Friedman    Repeated-     Conditional
                     ¡“°°«à“ 2 °≈ÿà¡                               measure       proportional
                     ∑’ˉ¡à‡ªìπÕ‘ √–µàÕ°—π                         ANOVA         hazards regression




                            ∂‘µ‘∑’Ë· ¥ß„πµ“√“ß 11.1-11.6 ‡ªìπ ∂‘µ‘ ”À√—∫·∫∫ß“π«‘®—¬∑’Ë„™â∫àÕ¬‡∑à“π—Èπ ®–‰¡à

                    §√Õ∫§≈ÿ¡°“√æ‘®“√≥“§«“¡ —¡æ—π∏å°√≥’∑’Ë¡’µ—«·ª√Õ‘ √–¡“°°«à“Àπ÷Ëßµ—« ‡™àπ °“√«‘‡§√“–Àå§«“¡
                    ·ª√ª√«π√à«¡ (covariate adjustment) °“√∑¥ Õ∫§«“¡‡∑’Ë¬ß (reliability test) ·≈–°“√∑¥ Õ∫
                    §«“¡ Õ¥§≈âÕß (test for agreement)

                           „π¢—ÈπµÕπ°“√«‘‡§√“–ÀåÕ“®®–¡’°“√·ª≈ߢâÕ¡Ÿ≈ (transformation) °àÕπ°“√«‘‡§√“–Àå  À√◊Õ
                    ∂â“¡’ªí≠À“‡°‘¥¢÷Èπ„π¢≥–‡°Á∫¢âÕ¡Ÿ≈ Õ“®¡’§«“¡®”‡ªìπ®–µâÕߪ√—∫‡ª≈’ˬπ ∂‘µ‘∑’Ë„™â„π°“√«‘‡§√“–Àå
                    ´÷Ëߢ÷ÈπÕ¬Ÿà°—∫≈—°…≥–ªí≠À“·≈–≈—°…≥–¢ÕߢâÕ¡Ÿ≈∑’ˇ°Á∫√«∫√«¡‰¥â






















                     194   ∫∑∑’Ë 11  «‘∏’‡≈◊Õ°„™â ∂‘µ‘ ”À√—∫·∫∫ß“π«‘®—¬





          ∫∑∑’Ë11                  194                                   30/7/09, 10:11 AM
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