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Table 6 Logistic regression results for main effects of neighborhood poverty and primary payer on chemotherapy receipt and post-surgical wait for chemotherapy of 60 days or more among patients with stage II or stage III colon cancer

From: Effects of being uninsured or underinsured and living in extremely poor neighborhoods on colon cancer care and survival in California: historical cohort analysis, 1996—2011

 

Single predictor models

Full models

Predictor variables

No.a

OR

(95%CI)

No.a

OR

(95%CI)

Received chemotherapy after surgery

Neighborhood poverty

 < 5% poor

1,103

1.00

 

1,103

1.00

 

 5-29% poor

1,066

0.80

(0.65, 0.98)

1,066

0.80

(0.65, 0.98)

 ≥ 30% poor

1,045

0.63

(0.52, 0.78)

1,045

0.65

(0.52, 0.80)

Primary payer

 Uninsured

 164

1.00

 

164

1.00

 

 Medicaid

 147

0.49

(0.30, 0.81)

 147

0.51

(0.31, 0.85)

 Medicare

1,436

0.75

(0.51, 1.11)

1,436

0.71*

(0.48, 1.04)

 Private

1,467

0.85

(0.60, 1.22)

1,467

0.75

(0.52, 1.09)

Waited 60 days or more for adjuvant chemotherapy

Neighborhood poverty

 

 < 5% poor

 421

1.00

 

 421

1.00

 

 5-29% poor

 369

1.48

(1.01, 2.18)

 369

1.45*

(0.98, 2.14)

 > 30% poor

 326

1.55

(1.04, 2.30)

 326

1.33

(0.88, 2.02)

Primary payer

 Uninsured

  90

1.00

 

  90

1.00

 

 Medicaid

  58

0.87

(0.40, 1.86)

  58

0.85

(0.39, 1.83)

 Medicare

 364

0.42

(0.24, 0.76)

 364

0.43

(0.24, 0.77)

 Private

 604

0.41

(0.24, 0.69)

 604

0.43

(0.25, 0.73)

  1. Notes. OR = odds ratio, CI = confidence interval. All effects were age- and stage-adjusted across these categories: 25–59, 60–69, 70–79 and 80 or older; and stage II or stage III.
  2. * p < .10.