Table 1.

Sample characteristics.

Characteristic	N (%)		P-value
	Completers	Non-completers
	N=74	N=26
Race			0.020a
Black/non-Hispanic	5 (6.8)	2 (7.7)
White/non-Hispanic	60 (81.1)	15 (57.7)
Asian/non-Hispanic	4 (5.4)	1 (3.8)
White/Hispanic	5 (6.8)	7 (26.9)
American Indian/non-Hispanic	0 (0)	1 (3.8)
Education			0.059a
< High school	1 (1.4)	1 (3.8)
High school diploma/GED	7 (9.5)	6 (23.1)
Technical/vocational degree	3 (4.1)	5 (19.2)
Some college/Two-year degree	29 (39.2)	7 (26.9)
Four-year degree	20 (27.0)	4 (15.4)
Advanced degree	14 (18.9)	3 (11.5)
Disease stage			0.016a
I	55 (74.3)	25 (96.2)
II	16 (21.6)	0 (0)
IIIa	3 (4.1)	1 (3.8)
Treatment			0.489a
Surgery only	41 (55.4)	17 (65.4)
Surgery + radiotherapy	33 (44.6)	9 (34.6)
	Mean (SD)		P-value
	Completers	Non-completers
Age, years	57.7 (10.3)	55.0 (12.6)	0.337b
Years since diagnosis	2.3 (1.3)	2.1 (1.1)	0.393b
Body mass index (BMI), kg/m2	33.7 (9.6)	36.2 (8.8)	0.225b
Minutes of moderate-vigorous physical activity per dayc	15.3 (11.8)	11.8 (11.7)	0.204b

^aFisher’s exact was performed to examine independence between completion status and sample characteristic.

^bWelch’s two sample t-tests were performed (assuming nonhomogeneity of variance).

^cMinutes of moderate-vigorous physical activity (MVPA) were quantified as a combination of EMA and accelerometry measurements. Participants reported duration of MVPA through EMA in real-time upon completion of exercise, and at night time of each measurement day. Participants were also asked to wear accelerometers during the same period. Since EMA or accelerometer measurements were missing for some days, the minutes of MVPA per day combined the EMA and accelerometer measures in the following hierarchy: i) real-time EMA minutes used as a primary measure, ii) night-time EMA minutes used if real-time minutes were missing, iii) accelerometer MVPA minutes (quantified using Freedson’s (1998) cut-point) used if both EMA assessments were missing.