Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study
BackgroundAlthough physical activity (PA) is recommended for patients with cancer, changes in PA across cancer diagnosis and treatment have not been objectively evaluated. ObjectiveThis study aimed to assess the impact of cancer diagnosis and treatment on PA level...
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| Language: | English |
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JMIR Publications
2025-01-01
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| Series: | JMIR Cancer |
| Online Access: | https://cancer.jmir.org/2025/1/e58093 |
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| author | Yoshihide Inayama Ken Yamaguchi Kayoko Mizuno Sachiko Tanaka-Mizuno Ayami Koike Nozomi Higashiyama Mana Taki Koji Yamanoi Ryusuke Murakami Junzo Hamanishi Satomi Yoshida Masaki Mandai Koji Kawakami |
| author_facet | Yoshihide Inayama Ken Yamaguchi Kayoko Mizuno Sachiko Tanaka-Mizuno Ayami Koike Nozomi Higashiyama Mana Taki Koji Yamanoi Ryusuke Murakami Junzo Hamanishi Satomi Yoshida Masaki Mandai Koji Kawakami |
| author_sort | Yoshihide Inayama |
| collection | DOAJ |
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BackgroundAlthough physical activity (PA) is recommended for patients with cancer, changes in PA across cancer diagnosis and treatment have not been objectively evaluated.
ObjectiveThis study aimed to assess the impact of cancer diagnosis and treatment on PA levels.
MethodsThis was a retrospective cohort study using a Japanese claims database provided by DeSC Healthcare Inc, in which daily step count data, derived from smartphone pedometers, are linked to the claims data. In this study, we included patients newly diagnosed with cancer, along with those newly diagnosed with diabetes mellitus for reference. We collected data between April 2014 and September 2021 and analyzed them. The observation period spanned from 6 months before diagnosis to 12 months after diagnosis. We applied a generalized additive mixed model with a cubic spline to describe changes in step counts before and after diagnosis.
ResultsWe analyzed the step count data of 326 patients with malignant solid tumors and 1388 patients with diabetes. Patients with cancer exhibited a 9.6% (95% CI 7.1%-12.1%; P<.001) reduction in step counts from baseline at the start of the diagnosis month, which further deepened to 12.4% (95% CI 9.5%-15.2%; P<.001) at 3 months and persisted at 7.1% (95% CI 4.2%-10.0%; P<.001) at 12 months, all relative to baseline. Conversely, in patients with diabetes, step counts remained relatively stable after diagnosis, with a slight upward trend, resulting in a change of +0.6% (95% CI –0.6% to 1.9%; P=.31) from baseline at 3 months after diagnosis. At 12 months after diagnosis, step counts remained decreased in the nonendoscopic subdiaphragmatic surgery group, with an 18.0% (95% CI 9.1%-26.2%; P<.001) reduction, whereas step counts returned to baseline in the laparoscopic surgery group (+0.3%, 95% CI –6.3% to 7.5%; P=.93).
ConclusionsThe analysis of objective pre- and postdiagnostic step count data provided fundamental information crucial for understanding changes in PA among patients with cancer. While cancer diagnosis and treatment reduced PA, the decline may have already started before diagnosis. The study findings may help tailor exercise recommendations based on lifelog data for patients with cancer in the future. |
| format | Article |
| id | doaj-art-a4101846dee54002bf29cd02e3692399 |
| institution | Kabale University |
| issn | 2369-1999 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | JMIR Publications |
| record_format | Article |
| series | JMIR Cancer |
| spelling | doaj-art-a4101846dee54002bf29cd02e36923992025-01-20T19:15:31ZengJMIR PublicationsJMIR Cancer2369-19992025-01-0111e5809310.2196/58093Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort StudyYoshihide Inayamahttps://orcid.org/0000-0003-2040-5913Ken Yamaguchihttps://orcid.org/0000-0002-7669-1405Kayoko Mizunohttps://orcid.org/0000-0002-6084-9845Sachiko Tanaka-Mizunohttps://orcid.org/0000-0003-0671-5376Ayami Koikehttps://orcid.org/0000-0002-7756-3595Nozomi Higashiyamahttps://orcid.org/0000-0002-2006-3020Mana Takihttps://orcid.org/0000-0002-1540-0985Koji Yamanoihttps://orcid.org/0000-0002-1240-5422Ryusuke Murakamihttps://orcid.org/0000-0001-5007-5674Junzo Hamanishihttps://orcid.org/0000-0002-7750-0623Satomi Yoshidahttps://orcid.org/0000-0002-3411-9427Masaki Mandaihttps://orcid.org/0000-0003-4428-8029Koji Kawakamihttps://orcid.org/0000-0002-7477-4071 BackgroundAlthough physical activity (PA) is recommended for patients with cancer, changes in PA across cancer diagnosis and treatment have not been objectively evaluated. ObjectiveThis study aimed to assess the impact of cancer diagnosis and treatment on PA levels. MethodsThis was a retrospective cohort study using a Japanese claims database provided by DeSC Healthcare Inc, in which daily step count data, derived from smartphone pedometers, are linked to the claims data. In this study, we included patients newly diagnosed with cancer, along with those newly diagnosed with diabetes mellitus for reference. We collected data between April 2014 and September 2021 and analyzed them. The observation period spanned from 6 months before diagnosis to 12 months after diagnosis. We applied a generalized additive mixed model with a cubic spline to describe changes in step counts before and after diagnosis. ResultsWe analyzed the step count data of 326 patients with malignant solid tumors and 1388 patients with diabetes. Patients with cancer exhibited a 9.6% (95% CI 7.1%-12.1%; P<.001) reduction in step counts from baseline at the start of the diagnosis month, which further deepened to 12.4% (95% CI 9.5%-15.2%; P<.001) at 3 months and persisted at 7.1% (95% CI 4.2%-10.0%; P<.001) at 12 months, all relative to baseline. Conversely, in patients with diabetes, step counts remained relatively stable after diagnosis, with a slight upward trend, resulting in a change of +0.6% (95% CI –0.6% to 1.9%; P=.31) from baseline at 3 months after diagnosis. At 12 months after diagnosis, step counts remained decreased in the nonendoscopic subdiaphragmatic surgery group, with an 18.0% (95% CI 9.1%-26.2%; P<.001) reduction, whereas step counts returned to baseline in the laparoscopic surgery group (+0.3%, 95% CI –6.3% to 7.5%; P=.93). ConclusionsThe analysis of objective pre- and postdiagnostic step count data provided fundamental information crucial for understanding changes in PA among patients with cancer. While cancer diagnosis and treatment reduced PA, the decline may have already started before diagnosis. The study findings may help tailor exercise recommendations based on lifelog data for patients with cancer in the future.https://cancer.jmir.org/2025/1/e58093 |
| spellingShingle | Yoshihide Inayama Ken Yamaguchi Kayoko Mizuno Sachiko Tanaka-Mizuno Ayami Koike Nozomi Higashiyama Mana Taki Koji Yamanoi Ryusuke Murakami Junzo Hamanishi Satomi Yoshida Masaki Mandai Koji Kawakami Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study JMIR Cancer |
| title | Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study |
| title_full | Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study |
| title_fullStr | Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study |
| title_full_unstemmed | Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study |
| title_short | Changes in Physical Activity Across Cancer Diagnosis and Treatment Based on Smartphone Step Count Data Linked to a Japanese Claims Database: Retrospective Cohort Study |
| title_sort | changes in physical activity across cancer diagnosis and treatment based on smartphone step count data linked to a japanese claims database retrospective cohort study |
| url | https://cancer.jmir.org/2025/1/e58093 |
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