Factors related to heart rate variability among firefighters

• Published in: Annals of occupational and environmental medicine Vol. 28; no. 1; pp. 25 - 9
• Main Authors: Shin, Jae-Hong, Lee, Jung-Youb, Yang, Seon-Hee, Lee, Mi-Young, Chung, In-Sung
• Format: Journal Article
• Language: English
• Published: London BioMed Central 13.06.2016; BioMed Central Ltd; XMLink, Co; 대한직업환경의학회
• Subjects: Cardiac arrhythmia; Emergency medical care; Emergency services; Employment; Fire fighters; Firefighters; Fires; Health aspects; Heart attacks; Heart beat; Heart rate; Measurement; Medicine; Medicine & Public Health; Medicine, Preventive; Methods; Nervous system; Occupational Medicine/Industrial Medicine; Occupational stress; Preventive health services; Public Health; Questionnaires; Research Article; Shift work; 예방의학; United States > US; Firefighters; Heart rate variability; Risk factors
• ISSN: 2052-4374; 2052-4374
• DOI: 10.1186/s40557-016-0111-6

Objectives The aim of this study was to investigate factors associated with heart rate variability in firefighters working in a metropolitan city in South Korea. Methods Self-administered questionnaires including Korean Occupational Stress Scale (KOSS) as well as surveys collecting socio-demographic characteristics and work-related factors were given to 962 firefighters. After exclusion for missing data, 645 firefighters were included, and analysis of covaiance adjusted for the general risk factors and job characteristics were used to assess the relationship between heart rate variability and associated factors. Results SDNN and RMSSD and were decreased in the area of occupational climate of the group with high job stress ( p  = 0.027, p  = 0.036). HF(ln) was decreased in the area of organizational system and occupational climate of the group with high stress that statistically significant level ( p  = 0.034, p  = 0.043). Conclusions Occupational climate and organizational system are associated with reduction of heart rate variability. Preventive medical care plans for cardiovascular disease of firefighters through the analysis and evaluation of job stress factors are needed.