In-patient step count predicts re-hospitalization after cardiac surgery
Background Clinical significance of in-patient step count after cardiac surgery remains unknown. The aim of this study was to determine whether the number of steps walked during the in-patient stay after cardiac surgery predicts the risk of cardiac re-hospitalization in the following year. Methods O...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/48129 |
| _version_ | 1848758025876144128 |
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| author | Takahashi, T. Kumamaru, M. Jenkins, Sue Saitoh, M. Morisawa, T. Matsuda, H. |
| author_facet | Takahashi, T. Kumamaru, M. Jenkins, Sue Saitoh, M. Morisawa, T. Matsuda, H. |
| author_sort | Takahashi, T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Background Clinical significance of in-patient step count after cardiac surgery remains unknown. The aim of this study was to determine whether the number of steps walked during the in-patient stay after cardiac surgery predicts the risk of cardiac re-hospitalization in the following year. Methods One hundred and thirty-three patients who underwent cardiac surgery were included in this study. The number of steps was assessed using a triaxial accelerometer. One year after surgery, patients completed a postal survey to determine their health condition and occurrence of cardiac re-hospitalization. Results The mean number of steps walked during the last three in-patient days was 2460 ± 1549 (mean ± standard deviation). Of the 133 patients, there were 16 cases (12.0%) of cardiac re-hospitalization during the 1-year follow-up period. The average step count before discharge was significantly lower in the 16 patients who were re-hospitalized for cardiac causes (1297 ± 1232 versus 2620 ± 1524, p < 0.01). The cut-off value that predicted the occurrence of cardiac re-hospitalization on the receiver operating curve was 1308 steps (area under the curve: 0.783, p < 0.001, sensitivity: 0.814, specificity: 0.733). Cox proportional hazards analysis revealed that the strongest predictor of cardiac re-hospitalization was a low step count prior to discharge (=1308 steps, hazard ratio: 7.58; 95% confidence interval: 2.04–28.22). Conclusions In-patient step count appears to be a risk factor for cardiac re-hospitalization within the first year following cardiac surgery. Further studies are needed to clarify the clinical significance of step count both preoperatively and following discharge. |
| first_indexed | 2025-11-14T09:37:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-48129 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:37:26Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-481292017-09-13T14:19:38Z In-patient step count predicts re-hospitalization after cardiac surgery Takahashi, T. Kumamaru, M. Jenkins, Sue Saitoh, M. Morisawa, T. Matsuda, H. Background Clinical significance of in-patient step count after cardiac surgery remains unknown. The aim of this study was to determine whether the number of steps walked during the in-patient stay after cardiac surgery predicts the risk of cardiac re-hospitalization in the following year. Methods One hundred and thirty-three patients who underwent cardiac surgery were included in this study. The number of steps was assessed using a triaxial accelerometer. One year after surgery, patients completed a postal survey to determine their health condition and occurrence of cardiac re-hospitalization. Results The mean number of steps walked during the last three in-patient days was 2460 ± 1549 (mean ± standard deviation). Of the 133 patients, there were 16 cases (12.0%) of cardiac re-hospitalization during the 1-year follow-up period. The average step count before discharge was significantly lower in the 16 patients who were re-hospitalized for cardiac causes (1297 ± 1232 versus 2620 ± 1524, p < 0.01). The cut-off value that predicted the occurrence of cardiac re-hospitalization on the receiver operating curve was 1308 steps (area under the curve: 0.783, p < 0.001, sensitivity: 0.814, specificity: 0.733). Cox proportional hazards analysis revealed that the strongest predictor of cardiac re-hospitalization was a low step count prior to discharge (=1308 steps, hazard ratio: 7.58; 95% confidence interval: 2.04–28.22). Conclusions In-patient step count appears to be a risk factor for cardiac re-hospitalization within the first year following cardiac surgery. Further studies are needed to clarify the clinical significance of step count both preoperatively and following discharge. 2015 Journal Article http://hdl.handle.net/20.500.11937/48129 10.1016/j.jjcc.2015.01.006 unknown |
| spellingShingle | Takahashi, T. Kumamaru, M. Jenkins, Sue Saitoh, M. Morisawa, T. Matsuda, H. In-patient step count predicts re-hospitalization after cardiac surgery |
| title | In-patient step count predicts re-hospitalization after cardiac surgery |
| title_full | In-patient step count predicts re-hospitalization after cardiac surgery |
| title_fullStr | In-patient step count predicts re-hospitalization after cardiac surgery |
| title_full_unstemmed | In-patient step count predicts re-hospitalization after cardiac surgery |
| title_short | In-patient step count predicts re-hospitalization after cardiac surgery |
| title_sort | in-patient step count predicts re-hospitalization after cardiac surgery |
| url | http://hdl.handle.net/20.500.11937/48129 |