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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Breast. 2017 Feb 27;33:1–7. doi: 10.1016/j.breast.2017.02.013

Table 3.

Characteristics associated with positive behavior change in exercise, eating healthy foods, and making efforts to maintain a healthy body weight

Exercise more often Eat healthy foods more often Make efforts to maintain a healthy body weight more often
All women Among women who reported <9 MET-hrs/ week before diagnosis- N=695 All women Among women with <5 fruit/veg servings/day before diagnosis- N=776 All women Among women with BMI≥25.0 kg/m2 before diagnosis- N=870
OR (95% CI)a OR (95% CI)a OR (95% CI)a OR (95% CI)a OR (95% CI)a OR (95% CI)a
Demographics

Age at Diagnosis
 35–50 1 1 1 1 1 1
 51–60 1.07 (0.74–1.55) 0.97 (0.58–1.60) 1.16 (0.84–1.58) 0.86 (0.57–1.30) 0.86 (0.61–1.21) 0.96 (0.61–1.50)
 61–70 0.94 (0.65–1.37) 0.94 (0.56–1.56) 0.83 (0.60–1.14) 0.59 (0.38–0.90) 0.78 (0.55–1.10) 0.86 (0.55–1.34)
 71–80 0.49 (0.28–0.86) 0.37 (0.16–0.86) 0.50 (0.32–0.78) 0.36 (0.20–0.66) 0.51 (0.31–0.83) 0.52 (0.28–0.95)
Per 5 year increase 0.89 (0.83–0.96) 0.89 (0.80–0.98) 0.89 (0.84–0.95) 0.84 (0.77–0.92) 0.89 (0.83–0.96) 0.89 (0.82–0.97)
Race/ethnicity
 Non-Hispanic White 1 1 1 1 1 1
 Non-Hispanic Black 0.77 (0.40–2.51) 0.61 (0.26–1.40) 2.30 (1.39–3.79) 1.94 (1.00–3.75) 1.30 (0.75–2.24) 1.15 (0.63–2.11)
 Hispanic 1.85 (0.91–3.75) 1.20 (0.37–3.90) 1.53 (0.79–2.95) 1.91 (0.86–4.26) 1.98 (1.02–3.88) 2.43 (1.07–5.50)
BMI (kg/m 2) before diagnosis
 <25.0 1 1 1 1 1 Not included
 25.0–29.9 1.11 (0.81–1.52) 0.82 (0.51–1.30) 1.27 (0.97–1.66) 1.05 (0.73–1.52) 1.80 (1.34–2.42) 1
 30.0+ 1.25 (0.91–1.73) 0.94 (0.61–1.46) 1.61 (1.22–2.12) 1.33 (0.91–1.94) 1.63 (1.20–2.22) 0.90 (0.66–1.21)
Per 1 kg/m2 increase 1.03 (1.01–1.05) 1.01 (0.99–1.04) 1.04 (1.02–1.06) 1.03 (1.00–1.06) 1.04 (1.02–1.06) 1.00 (0.98–1.03)

Diagnosis characteristics

Time since diagnosis (years)
 <2 1 1 1 1 1 1
 2–3.9 0.98 (0.68–1.43) 1.08 (0.64–1.81) 1.13 (0.83–1.54) 1.31 (0.86–1.99) 0.73 (0.53–1.02) 0.67 (0.45–0.99)
 4.0–5.9 1.38 (0.94–2.01) 1.63 (0.97–2.75) 1.38 (1.00–1.89) 1.49 (0.96–2.30) 0.91 (0.65–1.28) 0.87 (0.58–1.32)
 6.0+ 1.33 (0.83–2.16) 1.66 (0.85–3.25) 1.50 (1.00–2.26) 1.61 (0.92–2.83) 1.06 (0.69–1.63) 1.29 (0.76–2.20)
Per 1 year increase 1.11 (1.03–1.19) 1.14 (1.03–1.26) 1.15 (0.84–1.58) 1.07 (0.99–1.17) 1.02 (0.96–1.10) 1.04 (0.96–1.14)
Stage
 0 1 1 1 1 1 1
 I 0.99 (0.71–1.37) 0.87 (0.56–1.37) 1.15 (0.87–1.52) 1.26 (0.86–1.85) 1.11 (0.82–1.50) 0.99 (0.67–1.44)
 II 1.18 (0.79–1.75) 0.99 (0.58–1.69) 1.59 (1.13–2.22) 1.48 (0.92–2.38) 0.87 (0.59–1.28) 0.78 (0.49–1.24)
 III/IV 1.31 (0.73–2.35) 1.08 (0.50–2.32) 1.60 (0.96–2.68) 2.26 (1.13–4.51) 1.60 (0.93–2.76) 1.65 (0.88–3.11)

Treatment history

Chemotherapy
 No 1 1 1 1 1 1
 Yes 1.09 (0.82–1.45) 1.10 (0.75–1.62) 1.47 (1.16–1.86) 1.56 (1.13–2.17) 1.04 (0.80–1.35) 1.00 (0.73–1.39)
Trastuzumab
 No 1 1 1 1 1 1
 Yes 0.88 (0.53–1.47) 1.37 (0.72–2.61) 1.51 (1.00–2.27) 1.56 (0.89–2.75) 0.91 (0.57–1.47) 0.70 (0.38–1.28)
Endocrine therapy
 No 1 1 1 1 1 1
 Yes 1.47 (1.08–1.99) 1.30 (0.86–1.98) 1.17 (0.92–1.50) 1.09 (0.78–1.53) 1.20 (0.91–1.58) 1.12 (0.80–1.58)
Surgery and Radiation
 Mastectomy 1 1 1 1 1 1
 BCS with radiation 1.14 (0.86–1.50) 1.33 (0.91–1.93) 1.03 (0.82–1.31) 1.12 (0.81–1.54) 0.82 (0.63–1.06) 0.91 (0.66–1.26)
 BCS without radiation 0.86 (0.40–1.81) 1.33 (0.45–3.91) 1.01 (0.56–1.83) 1.06 (0.49–2.32) 1.16 (0.63–2.16) 0.89 (0.38–2.11)

Abbreviations: BMI=body mass index; BCS=breast conserving surgery

a

Adjusted for age at diagnosis and time since diagnosis