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. Author manuscript; available in PMC: 2022 Mar 13.
Published in final edited form as: Am J Health Promot. 2021 Aug 4;36(1):94–105. doi: 10.1177/08901171211036700

Table 3.

Median Active Minutes Per Week Among African American Breast Cancer Survivors in eHealth Weight Loss Trial.

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.

a

Numbers may not add to total due to missing data.

b

p-value using non-parametric Mann-Whitney U-Test or Kruskal-Wallis Test.

c

N = 34 for Months 7–12 data (Spark Premium + Fitbit group was only in trial for 6 months).

d

Fitbit only group started SparkPeople in Month 7.