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Table 3 Factors Associated with Colon Cancer Screening by Logistic Regression

From: Predictors of colorectal cancer screening in diverse primary care practices

Characteristic

Annual FOBTa

FOBT ever

Sigmoidoscopy, Colonoscopy or Barium Enema ever

Age (ref . = 64–74 years)

   

   75 + years

.99 (.59 – 1.71)

.71 (.53 – .95)*

.66 (.46 – .95)*

Gender (ref. = Male)

   

   Female

.23 (.12 – .44)*

.74 (.53 – 1.02)

.74 (.49 – 1.11)

Marital status (ref. = Married)

   

   Never married

1.80 (.64 – 5.07)

.84 (.43 – 1.63)

1.13 (.54 – 2.36)

   Widowed

.84 (.42 – 1.68)

.98 (.71 – 1.37)

.59 (.38 – .92)*

   Divorced/separated

.99 (.33 – 3.01)

1.02 (.57 – 1.80)

.69 (.33 – 1.44)

Employed (ref. = unemployed)

NSc

1.48 (1.00 – 2.20)*

NId

Stratum (ref. = Inner city)

   

   Rural

N/Ab

.70 (.41 – 1.18)

1.03 (.5 – 2.1)

   Urban

 

1.18 (.75 – 1.87)

1.51 (.83 – 2.76)

   Veterans' Affairs

 

2.45 (1.45 – 4.13)*

1.28 (.68 – 2.44)

Clinician visits/year (ref. <2)

   

   2 – <3

1.25 (0.57 – 2.73)

1.17 (0.82 – 1.66)

1.10 (0.69 – 1.74)

   3 – <5

2.78 (1.41 – 5.51)*

1.81 (1.23 – 2.60)*

1.83 (1.18 – 2.82)*

   ≥5

3.35 (1.52 – 7.42)*

1.24 (.77 – 1.98)

2.01 (1.14 – 3.55)*

Annual influenza vaccine

2.55 (1.45 – 4.47)*

1.25 (.85 – 1.84)

1.12 (.72 – 1.74)

Pneumococcal vaccine

1.01 (.56 – 1.82)

1.55 (1.16 – 2.08)*

1.23 (.85 – 1.77)

Tetanus toxoid

1.37 (.81 – 2.33)

1.46 (1.07 – 2.00)*

NSc

  1. *P < .05
  2. aFOBT = fecal occult blood test
  3. bN/A = Not included in logistic regression because of small cell sizes
  4. cNS = Not significant in bivariate analyses; not included in logistic regression
  5. dNI = Not included in logistic regression because income was correlated with education |r| = 0.44; P < .001