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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Cancer J. 2014 Mar-Apr;20(2):97–104. doi: 10.1097/PPO.0000000000000039

Table 2.

Demographic and Provider Characteristics Associated with Treatment by Stage of Disease, Multivariate Logistic Regression, Odds Ratios (95% Confidence Intervals)

Limited Stage Disease Extensive Stage Disease
Receipt of Etoposide with Cis or Carbo-platin only + Radiation (Yes vs. No) Receipt of Any Chemotherapy+ Radiation (Yes vs. No) Receipt of Etoposide with Cis or Carbo-platin Only (Yes vs. No) Receipt of Any Chemotherapy (Yes vs. No)
N=288 N=288 N=643 N=643
Age at diagnosis
<60 Ref Ref Ref Ref
60–69 0.88 (0.33, 2.36) 0.96 (0.26, 3.51) 2.14 (1.01, 4.53) 1.74 (0.88, 3.45)
70–79 0.53 (0.18, 1.56) 0.52 (0.15, 1.81) 1.75 (0.79, 3.88) 0.92 (0.46, 1.85)
80+ 0.16 (0.04, 0.64) 0.06 (0.01, 0.29) 0.63 (0.25, 1.57) 0.43 (0.20, 0.94)
Sex
Male Ref Ref Ref Ref
Female 0.63 (0.27, 1.44) 0.43 (0.16, 1.17) 1.03 (0.61, 1.74) 1.19 (0.75, 1.90)
Race/Ethnicity
White Ref Ref Ref Ref
Black 1.06 (0.43, 2.59) 0.91 (0.30, 2.75) 1.06 (0.63, 1.79) 1.20 (0.73, 1.98)
Hispanic 0.43 (0.16, 1.14) 0.37 (0.11, 1.20) 1.62 (0.91, 2.90) 1.31 (0.74, 2.33)
Other/Unknown 0.47 (0.14, 1.55) 0.29 (0.09, 0.94) 0.99 (0.49, 2.02) 1.51 (0.85, 2.67)
Insurance
Private Ref Ref Ref Ref
Any Medicaid 1.28 (0.39, 4.17) 0.67 (0.18, 2.56) 1.14 (0.58, 2.23) 0.82 (0.42, 1.60)
Medicare only 1.26 (0.46, 3.42) 0.56 (0.20, 1.54) 0.90 (0.40, 2.02) 0.92 (0.46, 1.87)
IHS/Tricare/VA/Military 2.55 (0.43, 15.18) 0.75 (0.13, 4.40) 1.56 (0.42, 5.71) 0.81 (0.23, 2.87)
Unknown/No Insurance 0.21 (0.02, 1.85) 0.15 (0.01, 1.79) 1.35 (0.34, 5.41) 1.66 (0.45, 6.17 )
Charlson Comorbidity Score
0 Ref Ref Ref Ref
1 2.02 (0.84, 4.90) 1.16 (0.44, 3.08) 1.12 (0.61, 2.04) 0.94 (0.52, 1.69)
2+ 2.81 (1.06, 7.44) 1.98 (0.68, 5.74) 0.72 (0.33, 1.60) 0.73 (0.36, 1.48)
Pneumonia/Lung Collapse
No/Unknown Ref Ref Ref Ref
Yes 0.54 (0.25, 1.19) 0.32 (0.15, 0.72) 1.04 (0.59, 1.83) 1.18 (0.71, 1.97)
Residency Program
No/Unknown Ref Ref Ref Ref
Yes 0.84 (0.40, 1.74) 0.48(0.22, 1.01) 1.64 (0.92, 2.94) 2.01 (1.19, 3.41)
Hospital Ownership
Not-for-Profit Ref Ref Ref Ref
For Profit 0.51 (0.12, 2.22) 0.22 (0.05, 1.00) 1.24 (0.45, 3.38) 1.78 (0.72, 4.37)
Government/Unknown 0.48 (0.18, 1.28) 0.39 (0.14, 1.08) 0.86 (0.48, 1.54) 0.80 (0.44, 1.45)