Wiley, American Journal of Industrial Medicine, 10(56), p. 1174-1179, 2013
DOI: 10.1002/ajim.22207
Full text: Unavailable
Background We conducted a cross sectional survey of electrocardiographic changes among shift-workers. Methods We classified the electrocardiogram morphology, and measured the QTc interval in 91 male workers engaged in regular daily work-shifts, 32 in 24 hr work-shift (h24), and 93 in irregular 6 hr work-shift (h6). Results With reference to daily workers, the QTc interval was prolonged among h6 workers (P