A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population
Background: Ambulatory blood pressure measurements are frequently lower compared to office measurements. Our aims were to investigate the relationship between office blood pressure measurements and ambulatory measurements and to quantify the difference between the two methods. Methods: This study in...
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UiT Norges arktiske universitet
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ftunivtroemsoe:oai:munin.uit.no:10037/25308 2023-05-15T18:34:53+02:00 A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population Småbrekke, Silje 2019-05-29 https://hdl.handle.net/10037/25308 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/25308 Copyright 2019 The Author(s) VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Nefrologi urologi: 772 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Nephrology urology: 772 MED-3950 Master thesis Mastergradsoppgave 2019 ftunivtroemsoe 2022-06-01T22:58:57Z Background: Ambulatory blood pressure measurements are frequently lower compared to office measurements. Our aims were to investigate the relationship between office blood pressure measurements and ambulatory measurements and to quantify the difference between the two methods. Methods: This study included 1608 participants aged 50 – 62 years from the municipality of Tromsø, Norway. Office blood pressure measurements and ambulatory measurements were compared using the Bland-Altman plot, Deming regression, and paired sample t-test. The Pearson correlation coefficient was also calculated. Results: The mean (standard deviation) daytime ambulatory systolic and diastolic blood pressure were 130.2 mmHg (13.2) and 82.1 mmHg (8.7), respectively. The mean systolic and diastolic observed office blood pressure was 129.6 mmHg (17.7) and 83.4 mmHg (9.8), respectively. Office diastolic blood pressure was significantly higher than ambulatory diastolic blood pressure (P<0.001). In the Bland-Altman plot, office systolic blood pressure was on average 0.53 mmHg lower than daytime ambulatory systolic blood pressure, and office diastolic blood pressure was on average 1.33 mmHg higher than daytime ambulatory diastolic pressure. In Deming regression, for each unit increase in ambulatory systolic blood pressure and ambulatory diastolic blood pressure, office systolic blood pressure increased with 0.68 mmHg (P<0.01) and office diastolic blood pressure increased with 0.85 mmHg (P<0.01), respectively. The Pearson R correlation between daytime ambulatory and office systolic blood pressure, and daytime ambulatory and office diastolic blood pressure was 0.73 (P<0.01) and 0.72 (P<0.01), respectively. Conclusion: We found significantly higher observed office diastolic blood pressure compared to ambulatory diastolic blood pressure. However, the difference was small and probably not clinically significant for the individual patient. The blood pressure measurements conducted by trained study nurses are not directly comparable to ... Master Thesis Tromsø University of Tromsø: Munin Open Research Archive Norway Tromsø |
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Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Nefrologi urologi: 772 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Nephrology urology: 772 MED-3950 |
spellingShingle |
VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Nefrologi urologi: 772 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Nephrology urology: 772 MED-3950 Småbrekke, Silje A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population |
topic_facet |
VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Nefrologi urologi: 772 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Nephrology urology: 772 MED-3950 |
description |
Background: Ambulatory blood pressure measurements are frequently lower compared to office measurements. Our aims were to investigate the relationship between office blood pressure measurements and ambulatory measurements and to quantify the difference between the two methods. Methods: This study included 1608 participants aged 50 – 62 years from the municipality of Tromsø, Norway. Office blood pressure measurements and ambulatory measurements were compared using the Bland-Altman plot, Deming regression, and paired sample t-test. The Pearson correlation coefficient was also calculated. Results: The mean (standard deviation) daytime ambulatory systolic and diastolic blood pressure were 130.2 mmHg (13.2) and 82.1 mmHg (8.7), respectively. The mean systolic and diastolic observed office blood pressure was 129.6 mmHg (17.7) and 83.4 mmHg (9.8), respectively. Office diastolic blood pressure was significantly higher than ambulatory diastolic blood pressure (P<0.001). In the Bland-Altman plot, office systolic blood pressure was on average 0.53 mmHg lower than daytime ambulatory systolic blood pressure, and office diastolic blood pressure was on average 1.33 mmHg higher than daytime ambulatory diastolic pressure. In Deming regression, for each unit increase in ambulatory systolic blood pressure and ambulatory diastolic blood pressure, office systolic blood pressure increased with 0.68 mmHg (P<0.01) and office diastolic blood pressure increased with 0.85 mmHg (P<0.01), respectively. The Pearson R correlation between daytime ambulatory and office systolic blood pressure, and daytime ambulatory and office diastolic blood pressure was 0.73 (P<0.01) and 0.72 (P<0.01), respectively. Conclusion: We found significantly higher observed office diastolic blood pressure compared to ambulatory diastolic blood pressure. However, the difference was small and probably not clinically significant for the individual patient. The blood pressure measurements conducted by trained study nurses are not directly comparable to ... |
format |
Master Thesis |
author |
Småbrekke, Silje |
author_facet |
Småbrekke, Silje |
author_sort |
Småbrekke, Silje |
title |
A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population |
title_short |
A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population |
title_full |
A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population |
title_fullStr |
A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population |
title_full_unstemmed |
A Comparison Between Office Blood Pressure Measurements and Ambulatory Blood Pressure Measurements in the Healthy Middle-Aged General Population |
title_sort |
comparison between office blood pressure measurements and ambulatory blood pressure measurements in the healthy middle-aged general population |
publisher |
UiT Norges arktiske universitet |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/25308 |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_relation |
https://hdl.handle.net/10037/25308 |
op_rights |
Copyright 2019 The Author(s) |
_version_ |
1766219853880885248 |