Education Lecture Meta-Analysis and Systemic Review.ppt

zenray 5 views 24 slides Apr 26, 2024
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About This Presentation

Meta-Analysis Lecture 41


Slide Content

2 x 2 Tables for Binary Data

・ For risk ratios, odds ratios, and risk
differences data are typically
represented in 2 x 2 tables with cells
A, B, C, and D

ㆍ The estimate of the correlation
population parameter p is r where

i=1(Xi — 0, — Y)

| (x; — X)? | Y
・ With variance

_ (1-1?)
ーー カー1

T=

T

FZ
rz

i+r
z= 05 x]

r

3
d = Log Odds Ratio x e

3

Va = VLog Odds Ratio * ㅠ 2


Log Odds Ratio = d x 一
8 V3

12

VLog Odds Ratio — Va X 3

rd

rd

dr

・ To convert from d to r
u d
Vd = a

ㆍ Where a is a correction factor when
ny ピコ 722
(ny + nz)?
a ニーーーーーー

nınz

dr

a?Va

Saa

Z ULy = Y + 1.96 x SE,

r

LLUL