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Table 2 Predictors of Palliative RT among Metastatic NSCLC Patients in Puerto Rico

From: Use of palliative radiotherapy among patients with metastatic non-small-cell lung cancer in Puerto Rico

Characteristic

Unadjusted Model

Adjusted Model

Odds Ratio (95% CI)

P Value

Odds Ratio (95% CI)

P Value

Age group (years)

 21–59

1.00

1.00

 60–74

0.76 (0.56, 1.04)

0.093

0.80 (0.55, 1.16)

0.231

 75+

0.55 (0.38, 0.82)

0.003

0.71 (0.44, 1.17)

0.182

Sex

 Male

1.00

1.00

 Female

0.95 (0.72, 1.25)

0.732

0.87 (0.64, 1.19)

0.408

Marital Status

    

 Unmarried

1.00

1.00

 Married

1.15 (0.87, 1.52)

0.318

0.91 (0.66, 1.26)

0.571

 Unknown

0.99 (0.42, 2.37)

0.994

0.87 (0.34, 2.23)

0.779

Health Insurance

 Medicaid

1.00

1.00

 Medicare

1.58 (1.07, 2.31)

0.020

1.47 (0.92, 2.37)

0.109

 Medicare-Medicaid

0.95 (0.65, 1.40)

0.814

1.02 (0.64, 1.63)

0.920

 Private

2.04 (1.40, 2.98)

< 0.0001

1.50 (0.98, 2.29)

0.061

Density of RT Centers

 Low (0–2)

1.00

1.00

 Medium (3–6)

1.08 (0.64, 1.84)

0.767

1.13 (0.62, 2.04)

0.685

 High (7+)

1.32 (0.75, 2.31)

0.339

1.31 (0.70, 2.48)

0.394

Geographic Location

 Metro

1.00

1.00

 Nonmetro

0.57

0.168

0.70 (0.29, 1.66)

0.416

Surgery

    

 No

1.00

1.00

 Yes

0.74 (0.45, 1.23)

0.250

0.66 (0.39, 1.14)

0.137

Chemotherapy

    

 No

1.00

1.00

 Yes

4.46 (3.32, 5.99)

< 0.0001

3.90 (2.91, 5.45)

< 0.0001

Year of Diagnosis

    

 2009

1.00

 

1.00

 2010

1.03 (0.57, 1.87)

0.918

1.03 (0.54, 1.97)

0.932

 2011

0.89 (0.52, 1.56)

0.707

0.98 (0.54,1,79)

0.959

 2012

0.91 (0.54, 1.54)

0.721

0.88 (0.50, 1.56)

0.659

 2013

1.03 (0.61, 1.73)

0.910

0.96 (0.54, 1.68)

0.879

 2014

0.94 (0.55, 1.58)

0.806

1.04 (0.59, 1.85)

0.870

 2015

0.98 (0.58, 1.64)

0.944

1.19 (0.68, 2.10)

0.545

Symptoms

 No

1.00

1.00

 Yes

1.86 (1.38, 2.51)

< 0.0001

1.41 (1.00, 1.98)

0.045

Comorbidity

 0

1.00

 

1.00

 1

1.07 (0.74, 1.55)

0.702

1.02 (0.68, 1.55)

0.919

 2+

0.81 (0.55, 1.18)

0.279

0.86 (0.55, 1.33)

0.483

  1. Abbreviations: CI, confidence interval, NSCLC non–small-cell lung cancer, OR odds ratio, RT radiation therapy