Cardiovascular risk factors and primary selection into shift work

Kirsten Nabe-Nielsen; Anne Helene Garde; Finn Tüchsen; Annie Hogh; Finn Diderichsen

Cardiovascular risk factors and primary selection into shift work

Kirsten Nabe-Nielsen, Anne Helene Garde, Finn Tüchsen, Annie Hogh, Finn Diderichsen

59 Citations (Scopus)

Abstract

OBJECTIVES: This study examined differences between future shift workers and future day workers as regards cardiovascular risk factors before they began different work schedules and the differences that remained after control for sociodemographic factors and general self-efficacy. METHODS: Altogether 2870 newly educated social and health care workers filled out a questionnaire a few weeks before finishing their formal training and again 1 year after graduation. They answered questions on diabetes, hypertension, lifestyle habits, sociodemographic factors, and general self-efficacy. RESULTS: In the unadjusted analyses, baseline obesity was associated with fixed evening work at follow-up. Minimal or light-to-moderate leisure-time physical activity was associated with a decrease in the odds ratio (OR) for two or three shifts including night work. Smoking status was associated with fixed evening work, fixed night work, and two- or three- shift work including night work. After adjustment for sociodemographic factors and general self-efficacy, smoking was prospectively associated with fixed evening work [OR 1.56, 95% confidence interval (95% CI) 1.21-2.02] and fixed night work (OR 1.64, 95% CI 1.04-2.56). Being an ex-smoker was associated with two- or three-shift work including night work (OR 1.85, 95% CI 1.28-2.68). The association between two- and three-shift work and smoking was only of borderline significance (OR 1.37, 95% CI 1.00-1.87). CONCLUSIONS: Compared with future day workers, fixed evening or fixed night workers already smoked more before they began shift work. Being an ex-smoker was significantly associated with two- or three-shift work including night work. These results indicate that smoking status should not solely be treated as a mediator between some variants of shiftwork schedules and cardiovascular diseases but should also be considered a confounder.

Original language	English
Journal	Scandinavian Journal of Work, Environment & Health
Volume	34
Issue number	3
Pages (from-to)	206-12
Number of pages	6
ISSN	0355-3140
Publication status	Published - 2008

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@article{14371a80c20a11dd8ca2000ea68e967b,

title = "Cardiovascular risk factors and primary selection into shift work",

abstract = "OBJECTIVES: This study examined differences between future shift workers and future day workers as regards cardiovascular risk factors before they began different work schedules and the differences that remained after control for sociodemographic factors and general self-efficacy. METHODS: Altogether 2870 newly educated social and health care workers filled out a questionnaire a few weeks before finishing their formal training and again 1 year after graduation. They answered questions on diabetes, hypertension, lifestyle habits, sociodemographic factors, and general self-efficacy. RESULTS: In the unadjusted analyses, baseline obesity was associated with fixed evening work at follow-up. Minimal or light-to-moderate leisure-time physical activity was associated with a decrease in the odds ratio (OR) for two or three shifts including night work. Smoking status was associated with fixed evening work, fixed night work, and two- or three- shift work including night work. After adjustment for sociodemographic factors and general self-efficacy, smoking was prospectively associated with fixed evening work [OR 1.56, 95% confidence interval (95% CI) 1.21-2.02] and fixed night work (OR 1.64, 95% CI 1.04-2.56). Being an ex-smoker was associated with two- or three-shift work including night work (OR 1.85, 95% CI 1.28-2.68). The association between two- and three-shift work and smoking was only of borderline significance (OR 1.37, 95% CI 1.00-1.87). CONCLUSIONS: Compared with future day workers, fixed evening or fixed night workers already smoked more before they began shift work. Being an ex-smoker was significantly associated with two- or three-shift work including night work. These results indicate that smoking status should not solely be treated as a mediator between some variants of shiftwork schedules and cardiovascular diseases but should also be considered a confounder.",

author = "Kirsten Nabe-Nielsen and Garde, {Anne Helene} and Finn T{\"u}chsen and Annie Hogh and Finn Diderichsen",

note = "Keywords: Adult; Allied Health Personnel; Cardiovascular Diseases; Female; Health Behavior; Humans; Male; Middle Aged; Occupational Diseases; Personnel Staffing and Scheduling; Prospective Studies; Questionnaires; Risk Factors; Sleep Disorders, Circadian Rhythm; Social Work; Students, Health Occupations; Work Schedule Tolerance",

year = "2008",

language = "English",

volume = "34",

pages = "206--12",

journal = "Scandinavian Journal of Work, Environment & Health",

issn = "0355-3140",

publisher = "Tyoterveyslaitos",

number = "3",

}

TY - JOUR

T1 - Cardiovascular risk factors and primary selection into shift work

AU - Nabe-Nielsen, Kirsten

AU - Garde, Anne Helene

AU - Tüchsen, Finn

AU - Hogh, Annie

AU - Diderichsen, Finn

N1 - Keywords: Adult; Allied Health Personnel; Cardiovascular Diseases; Female; Health Behavior; Humans; Male; Middle Aged; Occupational Diseases; Personnel Staffing and Scheduling; Prospective Studies; Questionnaires; Risk Factors; Sleep Disorders, Circadian Rhythm; Social Work; Students, Health Occupations; Work Schedule Tolerance

PY - 2008

Y1 - 2008

N2 - OBJECTIVES: This study examined differences between future shift workers and future day workers as regards cardiovascular risk factors before they began different work schedules and the differences that remained after control for sociodemographic factors and general self-efficacy. METHODS: Altogether 2870 newly educated social and health care workers filled out a questionnaire a few weeks before finishing their formal training and again 1 year after graduation. They answered questions on diabetes, hypertension, lifestyle habits, sociodemographic factors, and general self-efficacy. RESULTS: In the unadjusted analyses, baseline obesity was associated with fixed evening work at follow-up. Minimal or light-to-moderate leisure-time physical activity was associated with a decrease in the odds ratio (OR) for two or three shifts including night work. Smoking status was associated with fixed evening work, fixed night work, and two- or three- shift work including night work. After adjustment for sociodemographic factors and general self-efficacy, smoking was prospectively associated with fixed evening work [OR 1.56, 95% confidence interval (95% CI) 1.21-2.02] and fixed night work (OR 1.64, 95% CI 1.04-2.56). Being an ex-smoker was associated with two- or three-shift work including night work (OR 1.85, 95% CI 1.28-2.68). The association between two- and three-shift work and smoking was only of borderline significance (OR 1.37, 95% CI 1.00-1.87). CONCLUSIONS: Compared with future day workers, fixed evening or fixed night workers already smoked more before they began shift work. Being an ex-smoker was significantly associated with two- or three-shift work including night work. These results indicate that smoking status should not solely be treated as a mediator between some variants of shiftwork schedules and cardiovascular diseases but should also be considered a confounder.

AB - OBJECTIVES: This study examined differences between future shift workers and future day workers as regards cardiovascular risk factors before they began different work schedules and the differences that remained after control for sociodemographic factors and general self-efficacy. METHODS: Altogether 2870 newly educated social and health care workers filled out a questionnaire a few weeks before finishing their formal training and again 1 year after graduation. They answered questions on diabetes, hypertension, lifestyle habits, sociodemographic factors, and general self-efficacy. RESULTS: In the unadjusted analyses, baseline obesity was associated with fixed evening work at follow-up. Minimal or light-to-moderate leisure-time physical activity was associated with a decrease in the odds ratio (OR) for two or three shifts including night work. Smoking status was associated with fixed evening work, fixed night work, and two- or three- shift work including night work. After adjustment for sociodemographic factors and general self-efficacy, smoking was prospectively associated with fixed evening work [OR 1.56, 95% confidence interval (95% CI) 1.21-2.02] and fixed night work (OR 1.64, 95% CI 1.04-2.56). Being an ex-smoker was associated with two- or three-shift work including night work (OR 1.85, 95% CI 1.28-2.68). The association between two- and three-shift work and smoking was only of borderline significance (OR 1.37, 95% CI 1.00-1.87). CONCLUSIONS: Compared with future day workers, fixed evening or fixed night workers already smoked more before they began shift work. Being an ex-smoker was significantly associated with two- or three-shift work including night work. These results indicate that smoking status should not solely be treated as a mediator between some variants of shiftwork schedules and cardiovascular diseases but should also be considered a confounder.

M3 - Journal article

C2 - 18728910

SN - 0355-3140

VL - 34

SP - 206

EP - 212

JO - Scandinavian Journal of Work, Environment & Health

JF - Scandinavian Journal of Work, Environment & Health

IS - 3

ER -

Cardiovascular risk factors and primary selection into shift work

Abstract

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