Table 2.
Characteristics of Black breast cancer survivors by pre-diagnosis physical activity, Southern Community Cohort Studya
| Total PA (MET-hours/day) |
||||||||
|---|---|---|---|---|---|---|---|---|
| <9.91 | 9.91–<17.2 | 17.2–27.29 | ≥27.29 | |||||
|
|
||||||||
| n | % | n | % | n | % | n | % | |
|
| ||||||||
| Education | ||||||||
| <High school | 84 | 35.2 | 68 | 29.7 | 68 | 28.0 | 41 | 17.2 |
| High school | 78 | 32.6 | 75 | 32.8 | 74 | 30.5 | 86 | 36.1 |
| Some college | 51 | 21.3 | 52 | 22.7 | 63 | 25.9 | 78 | 32.8 |
| ≥College degree | 26 | 10.9 | 34 | 14.9 | 38 | 15.6 | 33 | 13.9b |
| Income | ||||||||
| <$15,000 | 165 | 69.9 | 136 | 59.7 | 136 | 56.2 | 110 | 47.0 |
| $15,000-<$25,000 | 43 | 18.2 | 43 | 18.9 | 58 | 24.0 | 62 | 26.5 |
| ≥$25,000 | 28 | 11.9 | 49 | 21.5 | 48 | 19.8 | 62 | 26.5b |
| Menopausal Status | ||||||||
| Premenopausal | 11 | 4.9 | 12 | 5.7 | 8 | 3.5 | 15 | 6.9 |
| Postmenopausal | 212 | 95.1 | 199 | 94.3 | 219 | 96.5 | 203 | 93.1 |
| SEER Summary Stage | ||||||||
| Local | 116 | 51.1 | 125 | 56.6 | 125 | 54.8 | 128 | 56.9 |
| Regional | 96 | 42.3 | 88 | 39.8 | 85 | 37.3 | 86 | 38.2 |
| Distant | 15 | 6.6 | 8 | 3.6 | 18 | 7.9 | 11 | 4.9 |
| ER/PR | ||||||||
| ER+/PR+ | 105 | 51.2 | 107 | 52.5 | 118 | 58.1 | 120 | 56.6 |
| ER+/PR− or ER−/PR+ | 29 | 14.2 | 37 | 18.1 | 38 | 18.7 | 23 | 10.9 |
| ER−/PR− | 71 | 34.6 | 60 | 29.4 | 47 | 23.2 | 69 | 32.6 |
| Surgery | ||||||||
| None | 29 | 12.6 | 24 | 10.9 | 27 | 11.3 | 17 | 7.4 |
| Lumpectomy | 104 | 45.0 | 104 | 47.3 | 107 | 44.8 | 108 | 47.2 |
| Mastectomy | 98 | 42.4 | 92 | 41.8 | 105 | 43.9 | 104 | 45.4 |
| Radiotherapy | ||||||||
| No | 119 | 60.4 | 109 | 56.5 | 128 | 64.7 | 112 | 57.7 |
| Yes | 78 | 39.6 | 84 | 43.5 | 70 | 35.4 | 82 | 42.3 |
| Chemotherapy | ||||||||
| No | 113 | 52.8 | 110 | 52.9 | 114 | 52.5 | 94 | 45.2 |
| Yes | 101 | 47.2 | 98 | 47.1 | 103 | 47.5 | 114 | 54.8 |
| Hypertension | ||||||||
| No | 74 | 31.0 | 85 | 37.1 | 71 | 29.3 | 84 | 35.3 |
| Yes | 165 | 69.0 | 144 | 62.9 | 171 | 70.7 | 154 | 64.7 |
| Diabetes | ||||||||
| No | 149 | 62.3 | 166 | 72.5 | 174 | 71.6 | 190 | 79.8 |
| Yes | 90 | 37.7 | 63 | 27.5 | 69 | 28.4 | 48 | 20.2b |
| Smoking | ||||||||
| Current | 63 | 26.4 | 66 | 28.8 | 66 | 27.2 | 67 | 28.3 |
| Former | 59 | 24.7 | 54 | 23.6 | 46 | 18.9 | 48 | 20.3 |
| Never | 117 | 49.0 | 109 | 47.6 | 131 | 53.9 | 122 | 51.5 |
| Pre-diagnosis BMI at baseline kg/m2) | ||||||||
| <24.99c | 21 | 8.9 | 29 | 13.0 | 36 | 15.2 | 29 | 12.3 |
| 25–29.99 | 58 | 24.6 | 58 | 25.9 | 61 | 25.7 | 57 | 24.3 |
| 30–34.99 | 73 | 30.9 | 52 | 23.2 | 65 | 27.4 | 60 | 25.5 |
| 35–39.99 | 43 | 18.2 | 48 | 21.4 | 36 | 15.2 | 45 | 19.2 |
| ≥40 | 41 | 17.4 | 37 | 16.5 | 39 | 16.5 | 44 | 18.7 |
Abbreviations: Body mass index (BMI), estrogen receptor (ER), metabolic equivalents (MET), physical activity (PA), progesterone receptor (PR), Surveillance, Epidemiology, and End Results Program (SEER).
Table excludes missing data by variable (see Table 1 for frequency and percentage missing for each variable as applicable). Table includes women diagnosed with incident breast cancer after enrollment in the cohort.
P-value from Chi-square test <0.05.
Six women in the lowest BMI category had BMI <18.5 kg/m2.