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Masked hypertension in untreated normotensives: difference between a work day and a leisure day?
MedLine Citation:
PMID:  21084969     Owner:  NLM     Status:  In-Process    
OBJECTIVE: To compare ambulatory blood pressure recorded during a work day with a leisure day regarding masked hypertension.
DESIGN: A randomized crossover study in middle-aged normotensives.
PARTICIPANTS: Thirty-seven untreated middle-aged normotensives (17 women), who had repeated office blood pressure less than 140/90 mmHg.
MAIN OUTCOME MEASURE: Individual difference of masked hypertension between a work day and a leisure day.
RESULTS: Office systolic/diastolic blood pressure mean (SD) was 0.3/0.6 (6.4/5.2) mmHg higher during the work day. The mean (SD) systolic/diastolic 24-h, day and night blood pressure was 2.8/3.1 (4.5/3.6), 2.2/2.5 (4.9/4.2) and 1.3/1.9 (4.6/4.0) mmHg higher during the work day than during the leisure day. Individual comparisons of occurrence of ambulatory blood pressure values above normal during day (systolic ≥135 or diastolic ≥85) showed a statistically significant difference between the work day and the leisure day, P=0.0412. The P values for the individual comparisons of occurrence of ambulatory blood pressure values above normal during 24 h (systolic ≥130 or diastolic ≥80), and during night (systolic ≥120 or diastolic ≥70 mmHg) were P=0.0771 and 0.6171, respectively.
CONCLUSION: Ambulatory blood pressure was somewhat higher during the work day than during the leisure day, and there was statistically significant individual difference concerning masked hypertension during daytime. Thus, in normotensives such as in hypertensives, ambulatory blood pressure during a work day seems to give the best information. Diastolic blood pressure values above normal were more common than systolic. However, systolic blood pressure is considered of greater importance in this age group and no participant had extremely high values.
Inger Elisabet Enström; Kjell M Pennert
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Blood pressure monitoring     Volume:  16     ISSN:  1473-5725     ISO Abbreviation:  Blood Press Monit     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9606438     Medline TA:  Blood Press Monit     Country:  England    
Other Details:
Languages:  eng     Pagination:  7-10     Citation Subset:  IM    
Department of Clinical Sciences in Malmö, Family Medicine, Lund University, Planvägen 3, Lund, Sweden.
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