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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Cancer Epidemiol. 2010 Mar 19;34(2):168–177. doi: 10.1016/j.canep.2010.02.005

Table 1.

Estimates of Recent and Repeat Mammography, Women Aged 55–79,a 2001 California Health Interview Survey

      Sample Characteristics Recent mammographyb Repeat mammographyc Repeat/
Recent
Sample Sample
Size Wgtd % (95% CI)d Size Wgtd % (95% CI) Ratioe
Total 8,205 82.4 (81.2–83.6) 8,133 73.8 (72.4–75.1) 0.896
Age
  55–64 3,869 83.1 (81.2–84.8) 3,843 75.1 (72.9–77.1) 0.904
  65–79 4,336 81.8 (80.1–83.3) 4,290 72.5 (70.7–74.2) 0.886
Education
  < High school graduate 1,191 75.9 (72.1–79.3) 1,164 61.8 (57.9–65.6) 0.814
  High school graduate 2,516 82.2 (80.0–84.2) 2,500 73.2 (70.7–75.6) 0.891
  Some college /vocational/ AA or AS degree 2,448 83.6 (81.3–85.7) 2,431 76.6 (74.3–78.8) 0.916
  College graduate 2,050 87.6 (85.4–89.6) 2,038 82.4 (80.2–84.5) 0.941
  Federal poverty level
  0–99% FPL 1,083 73.1 (68.4–77.3) 1,054 58.2 (54.0–62.3) 0.796
  100–199% FPL 2,016 78.3 (75.2–81.1) 2,001 67.7 (64.4–70.8) 0.865
  200–299% FPL 1,359 82.6 (79.6–85.2) 1,351 75.5 (72.3–78.5) 0.914
  300% FPL and above 3,747 87.9 (86.4–89.3) 3,727 81.8 (80.2–83.3) 0.931
Race/ethnicity and English proficiency
  Non-Latina White 6,309 85.2 (83.8–86.5) 6,274 78.0 (76.6–79.4) 0.915
  Non-Latina African American 408 88.1 (83.2–91.7) 393 77.4 (71.9–82.1) 0.879
  American Indian/Alaska Native 115 73.9 (60.9–83.7) 112 65.6 (49.6–78.7) 0.888
  Latina, some limit or proficient in English 322 77.6 (71.3–82.8) 320 70.9 (64.7–76.4) 0.914
  Latina, no English proficiency 314 70.7 (63.7–76.9) 310 53.4 (46.3–60.4) 0.755
  Asian, some limit or proficient in English 277 80.7 (73.8–86.1) 274 72.0 (64.6–78.4) 0.892
  Asian, no English proficiency 241 66.6 (58.0–74.2) 233 52.8 (44.6–60.9) 0.793
  Other race, single or multiple 189 82.1 (72.0–89.1) 187 72.1 (60.5–81.4) 0.878
Marital status
  Married / living with partner 3,814 84.9 (83.1–86.5) 3,786 77.1 (75.0–79.0) 0.908
  Widowed / separated / divorced 4,013 79.8 (77.9–81.6) 3,973 70.1 (67.8–72.3) 0.878
  Never married 356 73.8 (64.8–81.1) 352 64.5 (55.9–72.2) 0.874
Health status
  Excellent/Very Good/Good 6,175 84.1 (83.0–85.1) 6,139 76.6 (75.2–78.0) 0.911
  Fair or Poor 2,019 77.8 (74.5–80.7) 1,983 65.8 (62.3–69.1) 0.846
Smoking status
  Current 1,120 74.1 (69.8–78.1) 1,109 64.0 (59.4–68.3) 0.864
  Former 2,913 85.9 (84.4–87.3) 2,892 79.0 (77.0–80.8) 0.920
  Never 4,150 82.2 (80.3–83.9) 4,110 72.9 (70.8–74.8) 0.887
Body Mass Index
  0–18.49 (underweight) 163 71.6 (60.3–80.6) 162 59.9 (47.7–71.0) 0.837
  18.5–24.99 (normal weight) 3,458 81.9 (79.9–83.8) 3,428 74.4 (72.2–76.5) 0.908
  25.0–29.99 (overweight) 2,567 86.5 (84.5–88.2) 2,548 78.5 (76.1–80.7) 0.908
  30.0–higher (obese) 1,751 81.3 (77.8–84.4) 1,733 70.9 (67.3–74.2) 0.872
Gail model 5-year breast cancer risk score
  1.67% or greater risk 3,054 85.9 (83.9–87.6) 3,025 79.1 (77.0–81.1) 0.921
  Less than 1.67% risk 5,148 80.6 (79.0–82.2) 5,105 71.0 (69.0–73.0) 0.881
Current health insurance
  Any private insurance 6,124 87.0 (85.7–88.2) 6,085 80.0 (78.6–81.4) 0.920
  Public insurance only 1,602 75.8 (72.4–79.0) 1,574 62.7 (59.4–65.9) 0.827
  Uninsured 479 54.5 (48.3–60.6) 474 40.3 (34.5–46.4) 0.739
Usual source of care
  Yes 7,800 84.6 (83.3–85.7) 7,730 76.2 (74.8–77.6) 0.901
  None/ ER/urgent care clinic 395 45.8 (38.1–53.7) 395 32.8 (26.1–40.3) 0.716
a

Excludes women who have had breast cancer and those whose most recent mammogram was because of a breast problem.

b

Most recent mammogram was in past two years.

c

Most recent mammogram in past two years and 3–11 mammograms in the past 6 years.

d

95% confidence interval.

e

Ratio of repeat to recent mammography.