Quality of life and physical activity in long-term (≥5 years post-diagnosis) colorectal cancer survivors - systematic review

Table 2 Quality assessment of included studies

First author year (ref.) country	Potential Limitations
Blanchard 2004 [35] USA	- No validated PA questionnaire used
	- Possible response bias due to self-reported PA
	- Sample size < 100
	- Cross-sectional study design
Blanchard 2008 [30]^a USA	- Possible response bias due to self-reported PA
	- Only assessment of leisure-time PA
	- Cross-sectional study design
Blanchard 2010 [31]^a USA	- Possible response bias due to self-reported PA
	- Only assessment of leisure-time PA
	- Cross-sectional study design
Chambers 2012 [38] Australia	- Possible response bias due to self-reported PA
Chambers 2012 [38] Australia	- Only assessment of leisure-time PA
Husson 2015 [34]^b The Netherlands	- Possible response bias due to self-reported PA
Mols 2015 [9]^b The Netherlands	- Possible response bias due to self-reported PA
Mols 2015 [9]^b The Netherlands	- Cross-sectional study design
Rodriguez 2015 [36] USA	- Possible response bias due to self-reported PA
Rodriguez 2015 [36] USA	- Cross-sectional study design
Thraen-Borowski 2013 [37] USA	- Possible response bias due to self-reported PA
	- Only assessment of leisure-time PA
	- Cross-sectional study design
Van Roekel 2015 [32]^c The Netherlands	- Possible response bias due to self-reported PA
Van Roekel 2015 [32]^c The Netherlands	- Cross-sectional study design
Van Roekel 2016 [33]^c The Netherlands	- Cross-sectional study design

^aArticles based on same study population: American Cancer Society’s Study of Cancer Survivors-II (SCS-II); ^bArticles based on same study population: All patients diagnosed between 2000 and 2009 and registered in the Patient Reported Outcomes Following Initial treatment and Long term Evaluation of Survivorship (PROFILES registry); ^cArticles based on same study population: Energy for life after ColoRectal cancer (EnCoRe)

ISSN: 1477-7525