Table 1.
Breast cancer patient characteristics by activity level
| Overall % (N) | Quartiles of moderate–vigorous activity (in MET-hours/week)
|
P value | ||||
|---|---|---|---|---|---|---|
| 1 (<7.8) % (N) | 2 (7.8 to <20.2) % (N) | 3 (20.2 to <39.7) % (N) | 4 (≥39.7)% (N) | |||
| Age, mean (SD) | 59.7 (11.6) | 62.0 (12.1) | 60.6 (11.6) | 58.8 (11.0) | 57.2 (11.2) | <0.0001 |
| Race/ethnicity | ||||||
| White | 73.3 (1671) | 21.1 (352) | 24.7 (413) | 27.1 (453) | 27.1 (453) | <0.0001 |
| Black | 6.6 (150) | 40.7 (61) | 26.0 (39) | 14.7 (22) | 18.7 (28) | |
| Hispanic | 8.6 (196) | 34.7 (68) | 22.5 (44) | 21.4 (42) | 21.4 (42) | |
| Asian-PI | 11.5 (262) | 34.4 (90) | 27.9 (73) | 20.6 (54) | 17.2 (45) | |
| Education | ||||||
| <High school | 3.4 (78) | 51.3 (40) | 29.5 (23) | 12.8 (10) | 6.4 (5) | <0.0001 |
| ≥High school | 84.6 (1929) (262) | 24.8 (478) | 24.6 (474) | 25.4 (489) | 25.3 (488) | |
| Missing | 11.9 (272) | 53 | 72 | 72 | 75 | |
| Marital status | ||||||
| Married | 55.2 (1259) | 23.4 (294) | 24.8 (312) | 25.7 (324) | 26.1 (329) | 0.0066 |
| Not married | 32.7 (746) | 29.9 (223) | 24.8 (185) | 23.5 (175) | 21.9 (163) | |
| Missing | 12.0 (274) | 54 | 72 | 72 | 76 | |
| Employment | ||||||
| No | 38.4 (876) | 27.1 (237) | 26.0 (228) | 24.1 (211) | 22.8 (200) | 0.1144 |
| Yes | 61.6 (1403) | 23.8 (334) | 24.3 (341) | 25.7 (360) | 26.2 (368) | |
| AJCC stage | ||||||
| I | 54.3 (1238) | 24.3 (301) | 24.2 (300) | 25.5 (316) | 25.9 (321) | 0.6768 |
| II | 35.5 (809) | 25.6 (207) | 25.6 (207) | 24.2 (196) | 24.6 (199) | |
| III | 10.2 (232) | 27.2 (63) | 26.7 (62) | 25.4 (59) | 20.7 (48) | |
| ER status | ||||||
| Negative | 17.2 (391) | 23.5 (92) | 26.1 (102) | 26.1 (102) | 24.3 (95) | 0.8132 |
| Positive | 82.8 (1888) | 25.4 (479) | 24.7 (467) | 24.8 (469) | 25.1 (473) | |
| Surgery | ||||||
| Breast conserving | 60.3 (1375) | 26.0 (357) | 24.4 (335) | 25.2 (347) | 24.4 (336) | 0.8548 |
| Mastectomy | 38.8 (885) | 23.7 (210) | 26.0 (230) | 24.6 (218) | 25.7 (227) | |
| None | 0.8 (19) | 21.1 (4) | 21.1 (4) | 31.6 (6) | 26.3 (5) | |
| Hormonal therapy | ||||||
| Aromatase inhibitors | 43.1 (982) | 26.2 (257) | 27.5 (270) | 24.6 (242) | 21.7 (213) | 0.0133 |
| Tamoxifen | 20.5 (467) | 21.6 (101) | 22.9 (107) | 25.7 (120) | 29.8 (139) | |
| None | 35.4 (807) | 25.7 (207) | 23.2 (187) | 25.4 (205) | 25.8 (208) | |
| Unknown | 1.0 (23) | 6 | 5 | 4 | 8 | |
| Chemotherapy | ||||||
| No | 53.8 (1225) | 27.1 (332) | 24.4 (299) | 24.7 (302) | 23.8 (292) | 0.1028 |
| Yes | 46.2 (1054) | 22.7 (239) | 25.6 (270) | 25.5 (269) | 26.2 (276) | |
| Radiation | ||||||
| No | 63.8 (1453) | 24.7 (359) | 24.8 (360) | 24.8 (360) | 25.7 (374) | 0.6942 |
| Yes | 36.2 (826) | 25.7 (212) | 25.3 (209) | 25.5 (211) | 23.5 (194) | |
| Comorbidity | ||||||
| 0, 1 | 92.4 (2105) | 23.7 (499) | 24.5 (516) | 25.8 (542) | 26.0 (548) | <0.0001 |
| 2+ | 7.6 (174) | 41.4 (72) | 30.5 (53) | 16.7 (29) | 11.5 (20) | |
| Smoking | ||||||
| Current | 4.4 (101) | 36.6 (37) | 27.7 (28) | 18.8 (19) | 16.8 (17) | 0.1489 |
| Former | 35.7 (814) | 25.2 (205) | 24.6 (200) | 24.9 (203) | 25.3 (206) | |
| Never | 47.9 (1091) | 25.3 (276) | 24.6 (268) | 25.4 (277) | 24.8 (270) | |
| Missing | 12.0 (273) | 53 | 73 | 72 | 75 | |
| Mean CES-D score (SD) | 11.1 (9.0) | 12.0 (10.1) | 11.0 (8.2) | 11.0 (8.9) | 10.6 (8.5) | 0.0688 |
| Mean BMI (SD) | 28.4 (6.6) | 31.1 (7.6) | 28.8 (6.7) | 27.2 (5.6) | 26.4 (5.0) | <0.0001 |
| Social support | ||||||
| Mean (SD) | ||||||
| Emotion/info | 78.8 (18.7) | 76.8 (21.1) | 78.4 (19.5) | 78.7 (16.9) | 81.5 (6.6) | <0.0001 |
| Tangible | 78.8 (22.8) | 76.9 (24.9) | 79.1 (21.7) | 79.0 (21.9) | 80.2 (22.7) | 0.003 |
| Affectionate | 86.4 (20.8) | 84.0 (23.5) | 86.6 (19.8) | 86.6 (19.6) | 88.3 (19.8) | <0.0001 |
| Social interaction | 82.8 (21.0) | 80.5 (24.3) | 82.1 (19.9) | 82.3 (20.5) | 86.5 (18.8) | <0.0001 |
| Overall | 80.8 (17.6) | 78.6 (20.2) | 80.5 (17.1) | 80.7 (16.2) | 83.3 (16.3) | <0.0001 |
Missing data are not used in calculation of P values