ABC | Volume 114, Nº1, January 2019

Original Article Adar et al. Aortic calcification and non-dipper blood pressure Arq Bras Cardiol. 2020; 114(1):109-117 Table 2 – Ambulatory blood pressure variables of the study groups Non-Dipper (n = 261) Dipper (n = 145) p-value Day time mean SBP (mmHg) 124 (14) 127 (13) 0.012 Day time mean DBP (mmHg) 77 (11) 79 (11) 0.407 Nighttime mean SBP (mmHg) 122 (15) 108 (12) < 0.0001 Nighttime mean DBP (mmHg) 74 (10) 67 (10) < 0.0001 24-hour mean SBP (mmHg) 124 (14) 121 (12) 0.108 24-hour mean DBP (mmHg) 76 (10) 75 (10) 0.127 Change in SBP (mmHg) 1.9 (7) 19 (5) < 0.0001 Change in DBP (mmHg) 4 (8) 14 (10) < 0.0001 Continuous variables are presented as median (interquartile range) or mean (standard deviation).SBP: systolic blood pressure; DBP: diastolic blood pressure. Table 3 – Aortic arch calcification grades in the study groups Non-Dipper (n = 261) Dipper (n = 145) p-value Aortic arch calcification (n, %) Grade 0 79 (30.3) 97 (66.9) < 0.0001 Grade 1 107 (41.0) 36 (24.8) Grade 2 62 (23.8) 11 (7.6) Grade 3 13 (5.0) 1 (0.7) Aortic arch calcification grade ≥ 1 (n, %) 182 (69.7) 48 (33.1) < 0.0001 Aortic arch calcification grade ≥ 2 (n, %) 75 (28.7) 12(8.3) < 0.0001 Aortic arch calcification grade ≥ 3 (n, %) 13 (5.0) 1(0.7) 0.023 nocturnal BP.Moreover, this tool may help to use of ABPMdevices more precisely, which may reduce healthcare cost. Author contributions Conception and design of the research, Statistical analysis and Critical revision of the manuscript for intellectual content: Adar A, Onalan O; Acquisition of data: Adar A, Cakan F, Akbay E, Karakaya E; Analysis and interpretation of the data: Adar A, Onalan O, Cakan F, Akbay E, Karakaya E; Writing of the manuscript: Adar A, Onalan O, Cakan F, Akbay E, Karakaya E. Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. Sources of Funding There were no external funding sources for this study. Study Association This study is not associatedwith any thesis or dissertationwork. Ethics approval and consent to participate This study was approved by the Ethics Committee of the Abant Izzet Baysal University Clinical Researches Ethics Comitee Approval under the protocol number 2015/20. All the procedures in this study were in accordance with the 1975 Helsinki Declaration, updated in 2013. Informed consent was obtained from all participants included in the study. 113