Table 3.
Characteristics associated with post-diagnosisa physical activity and change in physical activity between pre- and post-diagnosis
| White N | African-American N | Total MET-Hours of Weekly Physical Activity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Post-Diagnosis | Mean Change in Activity | |||||||||||||
| White | African-American | White | African-American | |||||||||||
| Mean | Fully Adjustedb 95% CI | P | Mean | Fully Adjustedb 95% CI | P | Mean | Fully Adjustedb 95% CI | P | Mean | Fully Adjustedb 95% CI | P | |||
| Age at Diagnosis | 0.64 | 0.85 | 0.47 | 0.83 | ||||||||||
| ≥50 | 435 | 433 | 17.5 | (11.7, 23.3) | 11.5 | (6.9, 16.1) | −11.9 | (−22.6, −1.2) | −19.0 | (−28.9, −9.1) | ||||
| <50 | 424 | 394 | 16.5 | (10.4, 22.6) | 11.2 | (6.6, 15.8) | −9.2 | (−20.3, 2) | −19.8 | (−29.8, −9.9) | ||||
| Income | 0.44 | 0.25 | 0.02 | 0.06 | ||||||||||
| <$30,000 | 161 | 383 | 15.9 | (9.7, 22) | 10.2 | (5.9, 14.5) | −16.5 | (−27.7, −5.2) | −23.3 | (−32.6, −13.9) | ||||
| ≥$30,000 | 652 | 395 | 18.1 | (11.7, 24.5) | 12.4 | (7.5, 17.4) | −4.6 | (−16.3, 7.1) | −15.6 | (−26.3, −4.9) | ||||
| Education | 0.73 | 0.35 | 0.91 | 0.21 | ||||||||||
| < High School | 43 | 95 | 14.9 | (5.1, 24.7) | 14.0 | (7.5, 20.5) | −9.0 | (−27.1, 9.1) | −12.0 | (−26, 2) | ||||
| HS Graduate | 243 | 304 | 17.5 | (11.7, 23.2) | 9.5 | (4.9, 14.2) | −12.1 | (−22.6, −1.6) | −23.2 | (−33.3, −13.1) | ||||
| ≥ Some College | 573 | 428 | 18.6 | (12.9, 24.2) | 10.5 | (6.1, 14.8) | −10.6 | (−21, −0.2) | −23.0 | (−32.4, −13.7) | ||||
| Marital Status | 0.53 | 0.12 | 0.32 | 0.57 | ||||||||||
| Single | 42 | 159 | 16.3 | (6.3, 26.4) | 10.0 | (4.7, 15.4) | −11.6 | (−30, 6.8) | −18.8 | (−30.4, −7.3) | ||||
| Widowed | 59 | 72 | 16.5 | (7.9, 25) | 10.1 | (3.4, 16.8) | −8.1 | (−23.7, 7.6) | −22.7 | (−37.3, −8.2) | ||||
| Divorced/Separated | 153 | 250 | 19.5 | (13, 25.9) | 10.5 | (5.7, 15.4) | −7.0 | (−18.8, 4.8) | −20.8 | (−31.3, −10.3) | ||||
| Married | 605 | 346 | 15.6 | (10.1, 21.1) | 14.6 | (10.1, 19.2) | −15.5 | (−25.7, −5.4) | −15.3 | (−25.2, −5.4) | ||||
| Body Mass Index | 0.06 | 0.60 | 0.05 | 0.48 | ||||||||||
| Obese | 272 | 473 | 13.6 | (7.4, 19.9) | 10.9 | (6.5, 15.4) | −4.5 | (−15.9, 6.9) | −16.7 | (−26.4, −7.1) | ||||
| Overweight | 260 | 224 | 18.3 | (12.1, 24.5) | 12.6 | (7.7, 17.5) | −12.8 | (−24.2, −1.5) | −21.6 | (−32.2, −11) | ||||
| Normal | 319 | 129 | 19.0 | (12.9, 25.2) | 10.4 | (4.9, 15.9) | −14.3 | (−25.6, −3) | −19.9 | (−31.8, −8) | ||||
| Alcohol Consumption | 0.59 | 0.39 | 0.14 | 0.28 | ||||||||||
| Ever Use | 734 | 597 | 16.1 | (10.7, 21.6) | 12.2 | (8, 16.4) | −14.7 | (−24.7, −4.6) | −17.2 | (−26.3, −8.1) | ||||
| Never Use | 125 | 230 | 17.8 | (10.7, 24.9) | 10.5 | (5.4, 15.6) | −6.4 | (−19.5, 6.6) | −21.6 | (−32.5, −10.7) | ||||
| Smoking Status | 0.98 | 0.82 | 0.41 | 0.27 | ||||||||||
| Ever Smoked | 411 | 344 | 17.0 | (10.9, 23) | 11.5 | (6.9, 16.2) | −9.0 | (−20.1, 2.1) | −21.6 | (−31.6, −11.5) | ||||
| Never Smoked | 448 | 483 | 17.0 | (11.2, 22.7) | 11.1 | (6.6, 15.7) | −12.1 | (−22.7, −1.4) | −17.3 | (−27.1, −7.4) | ||||
| Comorbidities | 0.12 | 0.86 | 0.24 | 0.04 | ||||||||||
| Yes | 629 | 645 | 15.2 | (9.8, 20.6) | 11.5 | (7.4, 15.6) | −13.0 | (−23, −3.1) | −14.4 | (−23.3, −5.6) | ||||
| No | 192 | 132 | 18.8 | (12.2, 25.3) | 11.1 | (5.7, 16.5) | −8.1 | (−20.1, 4) | −24.4 | (−36.1, −12.8) | ||||
| AJCC Stage | 0.75 | 0.73 | 0.39 | 0.22 | ||||||||||
| 1 or 2 | 693 | 609 | 16.5 | (11.1, 22) | 11.7 | (7.5, 15.9) | −8.3 | (−18.3, 1.6) | −16.5 | (−25.6, −7.5) | ||||
| 3 or 4 | 124 | 163 | 17.4 | (10.5, 24.3) | 11.0 | (5.7, 16.2) | −12.8 | (−25.5, −0.1) | −22.3 | (−33.7, −10.9) | ||||
| CT/RTc | 0.13 | <0.01 | 0.02 | 0.38 | ||||||||||
| CT and RT | 88 | 119 | 19.3 | (12.2, 26.4) | 10.2 | (5.3, 15.1) | −2.4 | (−15.4, 10.6) | −16.1 | (−26.7, −5.6) | ||||
| CT only | 350 | 173 | 14.9 | (8.9, 20.9) | 7.2 | (2.5, 11.8) | −15.0 | (−26, −4) | −16.3 | (−26.4, −6.2) | ||||
| RT only | 70 | 49 | 20.4 | (12.2, 28.6) | 19.4 | (12, 26.8) | −5.0 | (−20.1, 10) | −19.0 | (−35, −3.1) | ||||
| No CT or RT | 152 | 101 | 13.2 | (6.4, 20.1) | 8.5 | (2.8, 14.2) | −19.8 | (−32.4, −7.2) | −26.2 | (−38.4, −13.9) | ||||
| Hormonal Therapyc | 0.21 | 0.48 | 0.69 | 0.06 | ||||||||||
| Yes | 269 | 177 | 19.0 | (11.9, 26.1) | 12.4 | (6.2, 18.5) | −9.4 | (−22.5, 3.7) | −13.5 | (−26.8, −0.2) | ||||
| No | 537 | 574 | 14.9 | (9.3, 20.6) | 10.3 | (6.4, 14.2) | −11.7 | (−22.2, −1.3) | −25.3 | (−33.8, −16.9) | ||||
| Surgeryc | 0.85 | 0.69 | 0.70 | 0.11 | ||||||||||
| Biopsy | 57 | 90 | 17.2 | (8.8, 25.7) | 12.5 | (6.1, 18.9) | −9.6 | (−25.1, 5.9) | −10.8 | (−24.7, 3.1) | ||||
| Lumpectomy | 259 | 246 | 16.2 | (9.7, 22.7) | 10.1 | (5.1, 15) | −9.4 | (−21.2, 2.5) | −24.9 | (−35.5, −14.2) | ||||
| Mastectomy | 495 | 425 | 17.5 | (11.9, 23.1) | 11.4 | (7.2, 15.6) | −12.7 | (−22.9, −2.5) | −22.6 | (−31.6, −13.6) | ||||
| Lymph Nodesc | 0.58 | 0.60 | 0.25 | 0.17 | ||||||||||
| ≥ 1 LN Removed | 364 | 354 | 16.4 | (10.3, 22.5) | 11.9 | (6.9, 16.8) | −8.3 | (−19.5, 2.9) | −16.4 | (−27.1, −5.8) | ||||
| No LNs Removed | 435 | 392 | 17.6 | (11.7, 23.4) | 10.8 | (6.4, 15.2) | −12.8 | (−23.4, −2.1) | −22.4 | (−31.9, −12.8) | ||||
Abbreviatons: CI= Confidence Interval; HS = High School; AJCC = American Joint Commission on Cancer; CT = Chemotherapy; RT= Radiation Therapy; LN = Lymph Nodes
a
Post-diagnosis physical activity was reported, on average, 6 months after diagnosis
b
Fully adjusted models include adjustment for total minutes of pre-diagnosis physical activity, in addition to all of the listed covariates
c
Treatment-related variables includes only those who treatment regimens began before post-diagnosis physical activity was assessed