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Table 2 Logistic Regression Models for Breast, Prostate and Colorectal Cancer Test Use

From: Are U.S. cancer screening test patterns consistent with guideline recommendations with respect to the age of screening initiation?

 

BREAST CANCER

(Mammography Use Within

the Last Year)

COLORECTAL CANCER

(Adherent to Guidelines Within

the Last Year)

PROSTATE CANCER

(PSA Test Use Within

the Last Year)

Variables

Unadjusted Marginal Effects

(95% CI)

Adjusted

Marginal Effects

(95% CI)

Unadjusted Marginal Effects

(95% CI)

Adjusted

Marginal Effects

(95% CI)

Unadjusted Marginal Effects

(95% CI)

Adjusted

Marginal Effects

(95% CI)

Age

0.022(.019,.024)**

0.022(.020,.025)**

0.017(.013,.020)**

0.017(.013,.020)**

0.021(.018,.023)**

0.021(.018,.023)**

Guideline

0.211(0.184,.238)**

0.212(.185,.238)**

0.060(.016,.104)**

0.056(.014,.100)**

0.068(.037,.100)**

0.067(.035,.099)**

Race - White+

-

 

-

 

-

 

Non-White

 

0.073(.055,.092)**

 

-0.015(-.040,.010)

 

0.061(.021,.071)**

Health Insurance

-

0.162(.142,.183)**

 

0.141(.118,.164)**

 

0.157(.132,.182)**

Income

-

 

-

 

-

 

Inc. < $15000+

      

Inc. $15000

      

-24999

 

0.047(.007,.088)*

 

-0.020(-.068,.029)

 

- 0.021(-.073,.029)

Inc. $25000

      

34999

 

0.018(-.023,.059)

 

-0.032(-.074,.011)

 

- 0.016(-.067,.035)

Inc. $35,000 plus

 

0.061(.028,.094)**

 

0.016(-.022,.054)

 

0.025(-.021,.071)

Inc. < $20000

 

-

 

0.006(-.039,.051)

  

Inc. > $20000

   

-0.00(-.060,.059)

  

Marital Status

  

-

 

-

 

Married/partnered+

      

Divorced

      

Widowed

 

-0.007(-.028,.014)

 

-0.001(-.025,.023)

 

-0.035(-.060,-.009)

Never married

 

-0.05(-.096,.0002)

 

0.029(-.025,.084)

 

0.051(-.009,.110)

  

-0.012(-.038,.014)

 

-0.008(-.040,.025)

 

-0.040(-.07, 01)**

Education

-

 

-

 

-

 

< High school+

      

High school grad.

 

-0.006(-.046,.033)

 

0.093(.053,.134)**

 

0.055(.006,.103)*

Some college

 

-0.002(-.041,.038)

 

0.111(.072,.150)**

 

0.095(.043,.148)**

College grad or higher

 

0.018(-.022,.058)

 

0.148(.107,.190)**

 

0.108(.058,.158)**

Sample Size

69547

69547

10127

10127

50028

50028

  1. Source: Mammography and PSA data are from the 2006 BRFSS, Colorectal cancer test data are from the 2003 NHIS Adult Subsample, +Reference Category, *P < 0.05, ** P < 0.01.
  2. Notes: Estimates are marginal effects from logistic regression models. For breast cancer, the regression sample is all women ages 30-50. For colorectal cancer the regression sample is all men and women ages 40-60. For prostate cancer the regression sample is all men ages 40-60. In each of the regressions, the "guideline'' variable assumes a value of 1 if the individual is within the guideline recommended age, and zero otherwise. Someone is defined as being adherent to the colorectal cancer screening guideline if they received either a FOBT within the past year, a sigmoidoscopy within the last 5 years or a colonoscopy within the last 10 years. BRFSS and NHIS income coding is different. The differences are described in the text.
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BMC Health Services Research

ISSN: 1472-6963

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