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. 2014 Jul-Sep;18(3):e2014.00078. doi: 10.4293/JSLS.2014.00078

Table 1.

Estimates of Coefficient of Linear Correlation Between BMI (Kilograms per Square Meter), UP Distance (Centimeters), and Direct and Indirect Hernia With Respect to Operating Time (Minutes)

Bilateral
 Unilateral
With Previous Surgery Without Previous Surgery With Previous Surgery Without Previous Surgery
BMIa
    rb 0.477 0.398 –0.047 0.236
    Pc .099 .027 .819 .092
    nd 13 31 26 52
UPa distance
    rb –0.217 0.077 0.241 0.198
    Pc .477 .681 .235 .160
    nd 13 31 26 52
Direct hernia
    rb 0.002 –0.178 –0.326 –0.338
    Pc .993 .272 .064 .005
    nd 22 40 33 66
Indirect hernia
    rb 0.105 0.225 0.325 0.215
    Pc .641 .162 .065 .082
    nd 22 40 33 66
a

BMI = body mass index; UP = umbilical-pubic.

b

Estimate of linear correlation coefficient of Pearson.

c

Descriptive level.

d

Pairs of subjects used in estimation of linear correlation coefficient of Pearson.