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Table 5 Robustness test: melanoma and obesity prevalence: white vs. black population

From: Is obesity a risk factor for melanoma?

 

Full Model

Stepwise Model

VARIABLES

Melanoma Prevalence

Melanoma Prevalence

(Year − 2011)

0.371***

0.339***

(1.62 × 10−5)

(5.54 × 10− 5)

Obesity _ Prevalence2

− 0.00284

–

(0.640)

–

White × Obesity _ Prevalence2

−0.0168*

− 0.00638***

(0.0689)

(2.93 × 10−7)

Obesity _ Prevalence

0.177

–

(0.690)

–

White × Obesity _ Prevalence

0.514

–

(0.366)

–

Constant

−2.873

−0.205

(0.722)

(0.653)

White

24.71***

30.88***

(0.00806)

(< 0.01)

Observations

843

843

R-squared

0.819

0.818

  1. The table provides the outcomes obtained from the full model given by eq. (8) and those obtained from the stepwise procedure. The latter is based on iterations, in each of which the independent variable whose coefficient has the highest p-value is omitted. These iterations are continued until the final model includes only independent variables whose coefficients are lower than a pre-determined threshold p-value, where the conventional one is p < 0.05. P-values are given in parentheses. *p < 0.1; **p < 0.05; ***p < 0.01
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BMC Cancer

ISSN: 1471-2407

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