TY  - JOUR
T1  - Is a “simple measurement” of intra-abdominal fat a simple tool for a surgeon?: Comment on “simple measurement of intra-abdominal fat for abdominal surgery outcome prediction”
AU  - Rege RV
Y1  - 2010/11/15
N1  - 10.1001/archsurg.2010.207
JO  - Archives of Surgery
SP  - 1073
EP  - 1074
VL  - 145
IS  - 11
N2  - 
Let us examine the OR of 1.09 for mortality vs IAF, which tells us that the OR increases 9.X% per millimeter increase in IAF. A 2-mm increase in IAF thus increases the OR 1.09 for the first millimeter times 1.09 for the second millimeter, so any increase (x) in IAF OR will be 1.09x. Using data from the original study, I estimate mortality to range from 0.6% at an IAF measurement of 2 mm to 31.4% at an IAF measurement of 60 mm. These notable risk differences would certainly alter approaches to patients if my model accurately fits the data. From a practical point of view, the reader would benefit from a formula, graph, or table that models risk at any IAF value. Answers to several questions also would be helpful: Are risk and IAF linearly related or are there cutoff points where risk increases rapidly or plateaus? Are data applicable to other upper abdominal operations and at other treatment sites? Are there perioperative interventions that lower risk?

SN  - 0004-0010
M3  - doi: 10.1001/archsurg.2010.207
UR  - http://dx.doi.org/10.1001/archsurg.2010.207
ER  -