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Table 2 Multivariable logistic regression model for effect of paying status (private) on risk of puncture wound.

From: The natural history of pedal puncture wounds in diabetics: a cross-sectional survey

Variable

Odds Ratio

95% CI for OR

P-value

Paying status (private)

0.256

0.084 to 0.775

0.016

Age

0.967

0.938 to 0.997

0.032

Duration diabetes (> 10 yrs)

3.207

1.469 to 6.999

0.003

  1. "Social class" was dropped from the model, despite a P-value of 0.062 for association with risk of puncture wound, because of high correlation with site of interview (P < 0.001). "Social class" remains an insignificant effector at the 5% level (P = 0.089) if it replaces site of interview/paying status in the final regression model.
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BMC Surgery

ISSN: 1471-2482

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