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Associations between insulin and heart rate variability in police officers.

Authors
Charles-LE; Andrew-ME; Sarkisian-K; Li-S; Mnatsakanova-A; Violanti-JM; Wilson-M; Gu-JK; Miller-DB; Burchfiel-CM
Source
Am J Hum Biol 2014 Jan-Feb; 26(1):56-63
NIOSHTIC No.
20043301
Abstract
OBJECTIVE: Low heart rate variability (HRV) has been linked to cardiovascular disease. Our objective was to examine the cross-sectional association between insulin and HRV. METHODS: Insulin levels were measured in 355 nondiabetic officers from the BCOPS study, following a 12 h fast. HRV was performed according to methods published by the task force of the European Society of Cardiology and the North American Society of Pacing Electrophysiology for measurement and analysis of HRV. Mean values of high (HF) and low frequency (LF) HRV were compared across tertiles of insulin using ANOVA and ANCOVA; p-values were obtained from linear regression models. RESULTS: Higher mean levels of insulin were significantly associated with lower (i.e., worse) mean levels of HRV before and after risk-factor adjustment. The results for HF HRV (ms2 ) were as follows: 1st insulin (microU/ml) tertile (156.3; 95% confidence interval (CI) = 128.6-189.9); 2nd tertile (154.3; 95% CI = 124.3-191.5); 3rd tertile (127.9; 95% CI = 105.0-155.8), p for trend = 0.017. Results with LF HRV were similar to HF HRV. Insulin was also inversely and significantly associated with HRV among officers with BMI >/=25 kg/m2 , with >/=25.5% body fat, and among those who reported low (
Keywords
Employee-health; Police-officers; Law-enforcement; Emergency-response; Biological-rhythms; Heart; Heart-rate; Cardiovascular-function; Cardiovascular-disease; Drug-interaction; Electrophysiological-measurements; Electrophysiological-effects; Mathematical-models; Weight-factors; Weight-measurement; Body-weight; Risk-factors; Physical-exercise; Autonomic-nervous-system; Hormone-activity; Metabolic-activation
Contact
Luenda E. Charles, National Institute for Occupational Safety and Health, HELD/BEB, MS L-4050, 1095 Willowdale Rd., Morgantown, WV 26505-2888
CODEN
AJHUES
Publication Date
20140101
Document Type
Journal Article
Email Address
lcharles@cdc.gov
Funding Type
Contract
Fiscal Year
2014
NTIS Accession No.
NTIS Price
Identifying No.
Contract-200-2003-01580; M112013
Issue of Publication
1
ISSN
1042-0533
NIOSH Division
HELD
Priority Area
Public Safety
Source Name
American Journal of Human Biology
State
WV; PA; NY; IL
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