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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 2.

Estimates of Recent and Repeat Mammography, Women Aged 55–79,a 2005 California Health Interview Survey

Sample Characteristics Recent mammographyb Repeat mammographyc Repeat/
Recent
Sample Wgtd Sample Wgtd
Size % (95% CI)d Size % (95% CI) Ratioe
Total 7,567 87.1 (85.9–88.2) 7,773 77.5 (76.1–78.8) 0.890
Age
  55–64 3,969 87.8 (86.2–89.3) 4,061 77.5 (75.5–79.3) 0.883
  65–79 3,598 86.3 (84.6–87.7) 3,712 77.5 (75.6–79.2) 0.898
Education
  < High school graduate 761 81.2 (76.7–85.0) 794 66.9 (61.4–71.9) 0.824
  High school graduate 1,851 86.6 (84.0–88.8) 1,906 78.2 (75.6–80.6) 0.903
  Some college /vocational/ AA or AS degree 2,255 88.7 (86.8–90.4) 2,317 79.2 (76.7–81.5) 0.893
  College graduate 2,700 89.6 (87.8–91.2) 2,756 81.3 (79.1–83.3) 0.907
Federal poverty level
  0–99% FPL 617 84.5 (79.8–88.2) 645 67.5 (61.4–73.1) 0.799
  100–199% FPL 1,261 80.6 (76.9–83.8) 1,316 69.6 (65.4–73.4) 0.864
  200–299% FPL 1,111 83.0 (79.5–86.1) 1,143 74.1 (70.0–77.7) 0.893
  300% FPL and above 4,578 91.0 (89.9–92.0) 4,669 83.2 (81.7–84.6) 0.914
Race/ethnicity and English proficiency
  Non-Latina White 5,896 88.7 (87.5–89.8) 6,075 80.3 (78.9–81.7) 0.905
  Non-Latina African American 347 88.5 (83.6–92.2) 349 82.8 (77.1–87.2) 0.936
  American Indian/Alaska Native 94 78.8 (64.4–88.5) 98 67.0 (51.1–79.8) 0.850
  Latina, some limit or proficient in English 284 83.6 (77.2–88.4) 286 73.8 (66.8–79.8) 0.883
  Latina, no English proficiency 210 86.9 (80.2–91.5) 216 72.2 (64.0–79.2) 0.831
  Asian, some limit or proficient in English 309 85.1 (79.0–89.7) 313 71.8 (64.3–78.2) 0.844
  Asian, no English proficiency 245 73.9 (65.9–80.6) 253 56.9 (47.5–65.9) 0.770
  Other race, single or multiple 170 88.6 (83.0–92.5) 171 78.1 (68.3–85.6) 0.881
Marital status
  Married / living with partner 3,632 89.5 (88.0–90.9) 3,698 79.7 (77.8–81.5) 0.891
  Widowed / separated / divorced 3,465 84.3 (82.3–86.2) 3,594 74.5 (72.1–76.7) 0.884
  Never married 470 81.5 (76.1–86.0) 481 75.7 (69.6–80.8) 0.929
Health status
  Excellent/Very Good/Good 5,828 88.8 (87.6–89.8) 5,984 79.6 (78.3–80.9) 0.896
  Fair or Poor 1,739 82.7 (79.5–85.5) 1,789 71.8 (68.0–75.2) 0.868
Smoking status
  Current 870 79.3 (75.6–82.7) 902 67.1 (62.5–71.5) 0.846
  Former 2,782 89.9 (87.9–91.5) 2,867 82.7 (80.4–84.8) 0.920
  Never 3,915 87.0 (85.5–88.4) 4,004 76.5 (74.6–78.2) 0.879
Body Mass Index
  0–18.49 (underweight) 167 80.2 (69.3–87.9) 174 71.0 (58.5–81.1) 0.885
  18.5–24.99 (normal weight) 3,326 86.8 (85.3–88.1) 3,425 76.5 (74.3–78.5) 0.881
  25.0–29.99 (overweight) 2,362 87.6 (85.3–89.6) 2,428 78.4 (75.5–81.0) 0.895
  30.0-higher (obese) 1,712 87.6 (85.4–89.6) 1,746 78.6 (75.8–81.2) 0.897
Gail model 5-year breast cancer risk score
  1.67% or greater risk 2,703 89.8 (88.2–91.2) 2,770 81.4 (79.2–83.4) 0.906
  Less than 1.67% risk 4,860 85.9 (84.4–87.3) 4,999 75.7 (73.8–77.5) 0.881
Current health insurance
  Any private insurance 6,049 90.3 (89.3–91.3) 6,164 82.6 (81.1–83.9) 0.915
  Public insurance only 1,122 80.0 (76.1–83.4) 1,171 67.1 (62.7–71.1) 0.839
  Uninsured 396 66.9 (59.2–73.8) 438 44.9 (39.1–50.9) 0.671
Usual source of care
  Yes 7,268 88.7 (87.6–89.7) 7,429 79.7 (78.4–81.0) 0.899
  None/ ER/urgent care clinic 299 55.2 (45.6–64.4) 344 34.0 (27.5–41.2) 0.616
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.