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Table 4 Regression analysis: annual new melanoma cases per 100,000 persons

From: Is obesity a risk factor for melanoma?

Years

 

2005–2015

2011–2015

2005–2010

Variables

Coef.

Melanoma Prevalence

Melanoma Prevalence

Melanoma Prevalence

Constant

β1

537.4**

− 303.4***

171.5***

 

(0.0281)

(0.00338)

(0.000255)

UV

β2

−8.798**

2.005***

−2.254***

 

(0.0237)

(0.00513)

(0.00253)

UV2

β3

0.0348**

0.00857***

 

(0.0190)

(0.00287)

UV× Obesity_Prevalence

β4

0.519*

−0.142***

0.0857***

 

(0.0635)

(0.00544)

(0.00217)

UV×(Obesity_Prevalence)2

β5

−0.00710

0.00244***

 

(0.155)

(0.00728)

UV2 × (Obesity_Prevalence)2

β6

2.87 × 10 −5

 

(0.131)

Obesity_Prevalence

β7

−29.58*

23.34***

−5.634***

 

(0.0934)

(0.00167)

(0.00133)

(Obesity_Prevalence)2

β8

0.391

−0.405***

 

(0.216)

(0.00215)

Obesity_Prevalence × UV2

β9

−0.00207*

−0.000332***

 

(0.0516)

(0.00205)

Method

 

Fixed-Effect

Fixed-Effect

Fixed-Effect

Corr(X,U)

 

−0.2288

−0.1047

−0.4116

Observations

 

527

245

282

Years

 

2005–2015

2011–2015

2005–2010

Number of Years

 

11

5

6

Number of States

 

40–49

49

40–49

R-Squared

 

0.172

0.172

0.168

  1. The table provides the estimation outcomes obtained from eq. (7). Given the change in obesity measurement reported by the CDC, we separated the analysis to two segments (2005–2010 and 2011–2015). While the left column gives the outcomes of the pooled sample (2005–2015), the right [middle] column displays the outcomes of the first [second] segment, namely 2005–2010 [2011–2015]. P-values are given in parentheses. *p < 0.1; **p < 0.05; ***p < 0.01