Original Article
The correlation between blood pressure response to cold pressor test and long-term blood pressure changes
Guo Tongshuai, Chu Chao, Zheng Wenling, Hu Jiawen, Mu Jianjun
Published 2020-04-01
Cite as Chin J Intern Med, 2020, 59(4): 286-291. DOI: 10.3760/cma.j.cn112138-20190623-00431
Abstract
ObjectiveThe aim of the study was to investigate the correlation between blood pressure response to cold pressor test (CPT) and follow-up blood pressure after 8 years in subjects, and to evaluate the predictive value of CPT for long-term blood pressure levels.
MethodsA total of 365 individuals from eight natural villages were enrolled by stratified cluster sampling from Mei County, Shaanxi Province in 2004. Baseline characteristics of subjects were collected and CPTs were conducted. Subjects were followed up in 2009 and 2012, respectively. According to the maximal change of systolic response (SR), the area under the curve (AUC) of systolic blood pressure change (AUC-SBP), the maximal change of diastolic response (DR) and the AUC of diastolic blood pressure change (AUC-DBP) in CPT, the individuals were divided into four quartile groups by above parameters, respectively: group Ⅰ (P25), group Ⅱ (P50), group Ⅲ (P75) and group Ⅳ (P100). The correlation between blood pressure response to CPT and the follow-up blood pressure was analyzed.
Results(1) There were no significant differences in baseline blood pressure levels and prevalence of hypertension among four quartile groups no matter it was grouped on SR, DR, AUC-SBP or AUC-DBP. (2) The prevalence of hypertension in each group from lowest (P25) to highest (P100) in 2012 was 25.64%, 30.67%, 38.03%, 55.74% on SR grouping (P<0.01), and 27.5%, 29.17%, 38.46%, 57.35% on AUC-SBP grouping (P<0.05), respectively. (3) There were no significant differences in the prevalence of hypertension among four groups in 2012 (P>0.05) either on DR or on AUC-DBP grouping. (4) The random effects model analysis showed that the correlation coefficient between SR, AUC-SBP and long-term systolic blood pressure increase were 1.91 (P<0.05) and 1.44 (P<0.05), respectively, and the correlation coefficient between DR, AUC-DBP and long-term diastolic blood pressure increase were 0.82 (P<0.05) and 0.78 (P>0.05), respectively. Age, male, body mass index, and fasting blood glucose were independent risk factors for long-term blood pressure elevation, and age, body mass index and fasting blood glucose positively correlated with changes in long-term blood pressure (all P<0.05).
ConclusionIndividual systolic blood pressure response to CPT can be used as a predictor of long-term hypertension.
Key words:
Blood pressure; Cold pressor test; Stress; Hypertension
Contributor Information
Guo Tongshuai
Department of Cardiology, The First Affiliated Hospital of Xi′an Jiaotong University, Xi′an 710061, China
Chu Chao
Department of Cardiology, The First Affiliated Hospital of Xi′an Jiaotong University, Xi′an 710061, China
Zheng Wenling
Department of Cardiology, The First Affiliated Hospital of Xi′an Jiaotong University, Xi′an 710061, China
Hu Jiawen
Department of Cardiology, The First Affiliated Hospital of Xi′an Jiaotong University, Xi′an 710061, China
Mu Jianjun
Department of Cardiology, The First Affiliated Hospital of Xi′an Jiaotong University, Xi′an 710061, China
