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. Author manuscript; available in PMC: 2018 Mar 5.
Published in final edited form as: Am J Prev Med. 2016 Feb;50(2):270–277. doi: 10.1016/j.amepre.2015.08.035

Table 2.

Summary Statistics for Younger Women With or Without Breast Cancer Aged 18–44 Years, Active Treatment Subsample, 2006

Variable Women with
breast cancer
(active treatment)
Women with
breast cancer
(not on active
treatment)
Women without
breast cancer
(after matching
to active
treatment group)
p-value for
differences
(BC versus matched
controls)
Observations (n) 3,065 6,847 3,065
Costs ($; M [SE])a
  Annualized total costs 68,096 (1,077) 10,026 (174) 6,019 (314) <0.01
  Annualized outpatient costs 64,271 (1,029) 8,377 (163) 4,820 (286) <0.01
  Annualized inpatient costs 140 (18) 77 (13) 39 (8) <0.01
  Annualized prescription drug costs 3,685 (196) 1,573 (37) 1,161 (69) <0.01
Age (years) 0.83
  18–23 0.2 0.7 0.2
  24–28 1.3 6.9 1.2
  29–33 6.4 13.9 6.6
  34–38 22.3 21.2 21.2
  39–44 69.8 57.4 70.8
Employment 0.73
  Employed, full-time 69.6 71.7 70.2
  Employed, part-time 1.7 1.5 1.4
Charlson Indexb 0.85
  Charlson score of zero 86.3 90.0 86.2
  Charlson score of one 11.6 8.6 11.9
  Charlson score greater than one 2.1 1.4 1.9
Comorbidities in 2006
  Ovarian cancer 1.0 0.5 0.8 0.37
  Colorectal cancer 0.7 0.1 0.7 0.94
  Lung cancer 2.1 0.3 2.0 0.75
  Cervical cancer 0.6 0.3 0.5 0.76
  Skin cancer 2.7 1.2 2.6 0.81
  Leukemia and lymphoma 1.6 0.4 1.5 0.80
  Hypertension 10.4 7.1 10.6 0.87
  Dyslipidemia 8.8 8.8 9.6 0.31
  Pneumonia 2.1 0.9 2.5 0.34
  Asthma 2.6 2.9 2.4 0.54
  Depression 6.0 4.9 6.8 0.25
  Back problems 17.0 15.0 17.3 0.74
  Skin disorders 22.5 19.3 23.3 0.48
  Injuries 31.7 19.0 32.5 0.52
  Pregnancy 3.6 15.5 3.5 0.90
  Arthritis 15.9 12.5 16.9 0.33
  Mental health/substance abuse 15.1 11.0 15.8 0.41

Note: Values are percentages unless otherwise noted. Summary statistics are presented for younger women with breast cancer and propensity score–matched comparison sample.

Boldface indicates a statistically significant difference from the breast cancer sample (p < 0.05).

State indicator variables were included in the match; none were significantly different than the breast cancer sample at the 5% level.

a

All costs are per capita and were adjusted to 2012 U.S. dollars.

b

This Charlson Index excludes cancers.

BC, breast cancer