Sleep patterns, shiftwork, and individual differences: a comparison of onshore and offshore control-room operators

Parkes, Katharine R.

doi:10.1080/00140139408963692

Cited by 63 publications

(48 citation statements)

References 37 publications

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“…Thus the primary difference between the day shift and daynight shifts offshore is that day work does not necessitate circadian adaptation. Indeed, in that offshore routines tend to facilitate adaptation to day-night shift work (47)(48)(49), the present findings may underestimate the effects of day-night shift work onshore.…”

Section: Methodological Issuesmentioning

confidence: 50%

Shift work and age as interactive predictors of body mass index among offshore workers

Parkes¹

2002

Scand J Work Environ Health

155

107

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Section: Methodological Issuesmentioning

confidence: 50%

Shift work and age as interactive predictors of body mass index among offshore workers

Parkes¹

2002

Scand J Work Environ Health

155

107

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“…For example, on oVshore drilling platforms at the transition from a week of 12 hour nights to a week of day shifts the shiftworker typically worked the last 12 hour night immediately followed by a 12 hour day before a scheduled break for sleep. 39 Thus, it could be argued that extended workshifts could have negative consequences, not least in terms of increased fatigue and impaired job performance.…”

Section: Fatigue and Job Performancementioning

confidence: 99%

Work shift duration: a review comparing eight hour and 12 hour shift systems.

et al. 1998

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Objectives-Shiftwork is now a major feature of working life across a broad range of industries. The features of the shift systems operated can impact on the wellbeing, performance, and sleep of shiftworkers. This paper reviews the current state of knowledge on one major characteristic of shift rotas-namely, shift duration. Evidence comparing the relative eVects of eight hour and 12 hour shifts on fatigue and job performance, safety, sleep, and physical and psychological health are considered. At the organisational level, factors such as the mode of system implementation, attitudes towards shift rotas, sickness absence and turnover, overtime, and moonlighting are discussed. Methods-Manual and electronic searches of the shiftwork research literature were conducted to obtain information on comparisons between eight hour and 12 hour shifts. Results-The research findings are largely equivocal. The bulk of the evidence suggests few diVerences between eight and 12 hour shifts in the way they aVect people. There may even be advantages to 12 hour shifts in terms of lower stress levels, better physical and psychological wellbeing, improved durations and quality of oV duty sleep as well as improvements in family relations. On the negative side, the main concerns are fatigue and safety. It is noted that a 12 hour shift does not equate with being active for only 12 hours. Conclusions-There can be considerable extension of the person's time awake either side of the shift. However, the eVects of longer term exposure to extended work days have been relatively uncharted in any systematic way. Longitudinal comparative research into the chronic impact of the compressed working week is needed. (Occup Environ Med 1998;55:217-229) Keywords: shift duration; health; sleep; 12 hour shifts In response to economic, technological, and social pressures a 24 hour organisation of the workplace is now common. This requires the workforce to accept and become adapted to many diVerent forms of shiftwork schedule. However, the adverse eVects of shiftworking are well chronicled.1-3 They include biological disruption to physiological processes, including the sleep-wake cycle 4 ; the impairment of physical health and psychological wellbeing 3 5 ; problems with alertness, performance, and safety, 6 7 and lastly, interference with social and domestic life. 8 9 The extent to which shiftwork aVects the individual person depends largely on the job being done, characteristics of the individual, the organisational and social environments, and features of the shift system. This potential impairment to functioning exists because daily rhythms in human physiology, hormone concentrations, biochemistry, and behaviour have become entrained to the most reliable and predictable cyclic changes in the physical and social environments. Under shiftworking conditions, and especially when required to work at night, the components of this system of circadian rhythms are regularly disrupted as a result of having to alter the activity-rest cycle.Many thousands of...

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“…Onshore research highlights the potentially adverse health effects of shift work as compared with day work (39,40). Evidence also suggests that adverse health effects are apparent in both past shift workers and those currently working shifts (41,42) and that prolonged exposure to shift work over a period of years has cumulative adverse effects on sleep patterns and health, not accounted for solely by increasing age (33,(43)(44)(45). On North Sea installations, personnel involved in round-theclock activities (eg, production, maintenance, and drilling) are not only exposed to 12-hour shifts and demanding work, but also to the need for circadian adjustment to day-night shift changes.…”

Section: Physical Characteristics Of Offshore Installationsmentioning

confidence: 99%

“…On one hand, older offshore employees are less likely to visit the sickbay (2) and tend to report fewer health problems than their younger counterparts (67); they also report greater job satisfaction than those in the middle age ranges (15). On the other hand, older workers have more difficulty adjusting to shift work, not only onshore (39), but also in the offshore environment (33). Furthermore, age is positively related to the proportion of medical evacuations necessitated by illness rather than injury (68).…”

Section: Individual Differences In Relation To Demographic and Personmentioning

confidence: 99%

“…In contrast, a significantly higher proportion (54%) of the offshore group than the onshore group (36%) reported sleep problems. However, more detailed analysis of sleep patterns in relation to day-night shift work suggested that offshore installations may provide a more favorable environment for nightshift adaptation than the domestic surroundings of onshore personnel (33).…”

Section: Psychosomatic Complaints and Sleep Problemsmentioning

confidence: 99%

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