Table 3.
Baseline characteristics | Na | Months 1–3 Median (IQR) | p-valueb | Months 4–6 Median (IQR) | p-valueb | Na,c | Months 7–9 Median (IQR) | p-valueb | Months 10–12 Median (IQR) | p-valueb |
---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||
Overall | 44 | 54.03 (88.24) | 54.92 (70.59) | 34 | 36.73 (l04.90) | 32 | 42.50 (76.92) | |||
Intervention group | 0.661 | 0.433 | 0.174 | 0.429 | ||||||
Fitbit onlyd | 17 | 58.47 (270.61) | 63.47 (180.25) | l7 | 64.54 (l94.96) | 63.69 (150.50) | ||||
SparkPeople + Fitbit | 17 | 45.72 (69.98) | 34.08 (49.76) | l7 | 30.54 (42.73) | 25.19 (64.83) | ||||
Spark Premium + Fitbit | 10 | 56.60 (91.07) | 56.14 (121.27) | 0 | — | — | ||||
Age | 0.414 | 0.24l | 0.464 | 0.168 | ||||||
< 60 years | 19 | 58.47 (67.47) | 62.32 (60.37) | l4 | 3l.38 (50.27) | 46.42 (64.71) | ||||
≥ 60 years | 25 | 45.72 (l03.90) | 35.94 (l07.l5) | 20 | 45.42 (138.02) | 39.96 (86.65) | ||||
Marital Status | 0.957 | 0.738 | 0.464 | 0.866 | ||||||
Married | 17 | 56.12 (98.56) | 55.57 (72.71) | l3 | 32.3l (84.65) | 8.23 (74.81) | ||||
Widowed/divorced | 12 | 49.40 (64.90) | 52.75 (5l.77) | l2 | 39.08 (40.08) | 53.77 (54.23) | ||||
Never married/unknown | 14 | 48.41 (178.93) | 49.71 (l34.82) | 8 | 75.00 (208.90) | 115.00 (159.54) | ||||
Employment status | 0.122 | 0.058 | 0.175 | 0.253 | ||||||
Employed | 17 | 74.85 (81.06) | 70.63 (l29.49) | l0 | 78.88 (148.77) | 62.81 (l53.52) | ||||
Unemployed | 7 | 51.93 (245.78) | 37.00 (l29.l3) | 7 | l4.08 (146.85) | 31.31 (219.31) | ||||
Retired | 20 | 34.44 (71.35) | 30.39 (55.95) | l7 | 25.38 (53.08) | 29.54 (72.79) | ||||
Education | 0.841 | 0.8l8 | 0.796 | 0.784 | ||||||
High school or less | 6 | 58.57 (149.51) | 62.58 (l46.88) | 5 | 55.l5 (234.35) | 65.27 (134.31) | ||||
Some college | 15 | 58.13 (87.32) | 54.85 (65.84) | ll | 30.46 (31.85) | 32.08 (69.62) | ||||
College graduate | 23 | 51.93 (95.6l) | 50.64 (69.58) | l8 | 48.65 (124.67) | 23.38 (100.73) | ||||
Number of people in household | 0.181 | 0.546 | 0.217 | 0.434 | ||||||
1 | 10 | 31.98 (135.85) | 39.98 (l66.24) | 7 | 22.46 (130.62) | 60.77 (110.15) | ||||
2–3 | 25 | 68.08 (66.55) | 55.57 (58.l7) | 20 | 48.65 (101.23) | 52.92 (74.00) | ||||
4–5 | 9 | 25.26 (204.83) | 9.54 (204.32) | 7 | 2.77 (62.62) | 8.23 (152.88) | ||||
Number of conditions | 0.232 | 0.2l2 | 0.12 | 0.474 | ||||||
0–2 | 20 | 84.79 (96.88) | 69.42 (l87.63) | l2 | 55.46 (175.25) | 57.27 (82.15) | ||||
3–4 | 14 | 55.03 (38.43) | 54.92 (6l.l4) | l2 | 45.42 (96.37) | 42.50 (100.08) | ||||
≥5 | 10 | 27.89 (l08.04) | 20.30 (60.86) | l0 | 8.69 (54.15) | 8.65 (78.04) | ||||
Charlson comorbidity | 0.04 | 0.022 | 0.17 | 0.322 | ||||||
0 | 23 | 45.72 (95.56) | 55.56 (2l7.72) | l6 | 48.65 (150.44) | 57.27 (137.87) | ||||
1 | 13 | 74.85 (103.19) | 68.21 (69.44) | l0 | 58.23 (123.02) | 52.92 (102.54) | ||||
≥2 | 8 | 20.68 (55.99) | 9.15 (27.97) | 8 | 18.88 (35.21) | 15.00 (57.69) | ||||
Breast cancer stage | 0.368 | 0.229 | 0.281 | 0.652 | ||||||
0 or I | 16 | 69.75 (194.74) | 69.18 (lll.77) | l3 | 94.46 (181.73) | 60.00 (96.62) | ||||
II | 15 | 30.53 (70.73) | 26.69 (75.98) | l0 | 30.50 (50.81) | 27.00 (70.92) | ||||
III | 7 | 49.00 (l75.57) | 37.00 (73.30) | 7 | 14.08 (56.31) | 6.00 (l88.27) | ||||
Chemotherapy | 0.294 | 0.932 | 0.807 | 0.224 | ||||||
No | 16 | 42.04 (47.88) | 55.28 (47.42) | l3 | 45.15 (108.54) | 66.35 (136.38) | ||||
Yes | 28 | 64.78 (95.46) | 45.92 (80.37) | 2l | 30.54 (94.50) | 25.19c (76.40) | ||||
Years since diagnosis | 0.377 | 0.592 | 0.726 | 0.516 | ||||||
01–5 | 20 | 54.03 (140.07) | 52.61 (74.24) | l5 | 32.31 (118.92) | 66.73 (95.71) | ||||
≥ 6 | 14 | 85.58 (86.83) | 55.06 (228.75) | 9 | 47.62 (103.38) | 23.38 (52.04) | ||||
Baseline BMI (kg/m2) | 0.034 | 0.07 | 0.078 | 0.606 | ||||||
25–29.9 | 7 | 56.12 (78.28) | 68.21 (9l.7l) | 6 | 78.88 (l3l.48) | 39.96 (86.02) | ||||
30–34.9 | 19 | 68.08 (94.87) | 62.32 (62.l2) | ll | 25.38 (105.69) | 46.04 (99.71) | ||||
35–39.9 | 7 | 120.87 (348.38) | 150.95 (3l8.24) | 7 | 152.00 (358.69) | 53.77 (l66.77) | ||||
40+ | 11 | 27.17 (47.89) | 18.78 (49.28) | l0 | 26.23 (49.67) | 15.00 (74.92) | ||||
Smoking status | 0.108 | 0.l5 | 0.146 | 0.411 | ||||||
never | 31 | 58.47 (97.94) | 55.57 (75.3l) | 22 | 48.65 (123.40) | 32.08 (100.42) | ||||
current or former | 13 | 38.36 (70.64) | 35.94 (64.70) | l2 | 26.23 (55.2l) | 52.92 (73.69) | ||||
Baseline QOL category | ||||||||||
1 (best) | 12 | 56.89 (90.90) | 0.817 | 68.54 (168.80) | 0.252 | l0 | 52.42 (169.42) | 0.253 | 40.38 (93.73) | 0.604 |
2 | 11 | 56.12 (85.34) | 54.85 (51.08) | 8 | 28.85 (98.98) | 72.69 (85.00) | ||||
3 | 12 | 44.36 (70.58) | 23.42 (62.54) | 8 | 16.58 (56.94) | 23.38 (59,3l) | ||||
4 (worst) | 9 | 58.46 (271.90) | 63.47 (l05.50) | 8 | 72.19 (l37.l5) | 48.04 (l49.37) | ||||
Fatigue | 0.749 | 0.218 | 0.463 | 0.882 | ||||||
Never—sometimes | 25 | 49.00 (93.74) | 55.28 (131.86) | l8 | 51.46 (l48.94) | 32.08 (99.23) | ||||
More often—always | 19 | 68.08 (69.13) | 29.32 (58.40) | l6 | 3l.42) (79.52 | 52.92 (72.62) | ||||
Poor physical health in past 30 days | 0.421 | 0.17 | 0.2l6 | 0.65 | ||||||
0 | 22 | 86.77 (104.63) | 78.31 (91.65) | l4 | 68.88 (84.7l) | 53.28 (56.l2) | ||||
1–5 | 13 | 168.91 (255.28) | 105.91 (l2l.63) | l2 | l23.35 (l44.93) | 96.l8 (l49.00) | ||||
> 5 | 9 | 60.79 (58.51) | 51.11 (78.54) | 8 | 33.06 (37.62) | 42.82 (57.40) | ||||
Poor mental health in past 30 days | 0.498 | 0.243 | 0.595 | 0.939 | ||||||
0 | 17 | 58.13 (185.87) | 76.34 (157.21) | l2 | 54.l9 (l50.98) | 32.08 (ll0.3l) | ||||
1–5 | 11 | 28.60 (l07.07) | 37.00 (75.66) | 8 | 26.50 (ll3.46) | 40.38 (86.65) | ||||
> 5 | 13 | 71.42 (81.15) | 29.32 (51.23) | l2 | 36.73 (73.l2) | 60.00 (59.46) |
Abbreviation: IQR, Interquartile range.
Numbers may not add to total due to missing data.
p-value using non-parametric Mann-Whitney U-Test or Kruskal-Wallis Test.
N = 34 for Months 7–12 data (Spark Premium + Fitbit group was only in trial for 6 months).
Fitbit only group started SparkPeople in Month 7.