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. 2021 Apr 13;21:332. doi: 10.1186/s12913-021-06339-x

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 2 — Relationship Between Transportation-related Factors and Chaotic Lifestyle. Abbreviations: CRC, colorectal cancer care; VA, Veterans Affairs. ^a SAS was used to calculate Spearman’s correlation coefficients and to create the correlation heatmap. Variables were continuous (chaotic lifestyle) or categorical (transportation barriers: “Always”, “Often”, “Sometimes”, “Never”; distance to the VA: “0 to 20 miles”, “21 to 40 miles”, “41 to 60 miles”, “61 to 80 miles”, “81 to 100 miles”, “101 miles or more”; use of the VA for colorectal cancer care: “All of your cancer care”, “More than half of your cancer care”, “About half of your cancer care”, “Less than half of your cancer care”; convenience of VA: “Very convenient”, “Somewhat convenient”, “Somewhat inconvenient”, “Very convenient”; mode of travel to the VA: “Drive myself’, “Friend or family drives me”, “Health aide”, “Disabled American Veterans (DAV) or other shuttle service”, “Public transportation”, “Another source”). ^b Participants who did not respond or responded “Don’t know” were excluded from analysis (n = 2). ^c Participants who did not respond or responded “Don’t know” were excluded from analysis (n = 2). ^d Mode of travel to the VA is ordered based on decreasing travel independence. Veterans who selected (1) “Drive myself” have access to a vehicle and are in control of traveling to or from the VA as needed; (2) “Friend or family drives me” face some limitations due to others’ availability but are able to tailor transportation to or from the VA according to their needs; (3) “Public transportation” are further limited by fixed travel schedules and routes to or from the VA; or (4) “Another source” are assumed to be the most restricted in terms of travel independence (respondents did not select “Health aide” or “DAV or other shuttle service”). ^e Participants who did not respond or had missing values were excluded from analysis (n = 3)