NNT/H:numberneededtotreat/harm,当我们研究保护性因素时,即Prtreated<Pruntreated时,常常报道NNT,指的是为了避免一例结局事件的发生,平均多少个人需要接受有利治疗;当我们研究危险性因素时,即Prtreated>Pruntreated时,常常报道NNH,指的是为了诱发一例结局事件的发生,平均多少人需要接受有害治疗。 综上,NNT/H=1÷a...
The NNH formula is the same as the number to treat equation: NNT = 1/ARR So, what is the difference? Number needed to harm describes the amount of side effects or any kind of harm. NNH calculations look for bad things, while NNT focuses on the positive. An example: ☢️ We're ...