APPLICATION OF ROBUST LINEAR MIXED MODEL TO STUDY THE RELATIONSHIP BETWEEN SHIFT WORK AND LONGITUDINAL CHANGES OF CHOLESTEROL AND CONTROLLING OF INFLUENCE OF BASELINE WEIGHT

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SALEHI MARZIJARANI MOHAMMAD; KAZEMI IRAJ; HASSANZADEH AKBAR

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Health System Research Year:2012 | Volume:8 | Issue:5 Page(s): 887-895

Download Full-Text

Persian Verion

View:

783

Download:

Cites:

Information Journal Paper

Title

APPLICATION OF ROBUST LINEAR MIXED MODEL TO STUDY THE RELATIONSHIP BETWEEN SHIFT WORK AND LONGITUDINAL CHANGES OF CHOLESTEROL AND CONTROLLING OF INFLUENCE OF BASELINE WEIGHT

Author(s)

SALEHI MARZIJARANI MOHAMMAD | KAZEMI IRAJ | HASSANZADEH AKBAR | Issue Writer Certificate

Keywords

SHIFT WORKQ3

CHOLESTEROLQ4

BAYESIAN APPROACHQ4

MIXED MODELQ4

SKEW-ELLIPTICAL DISTRIBUTIONQ4

SKEW-NORMAL DISTRIBUTIONQ4

Abstract

Background: The association between shift of work and chronic diseases such as cardiovascular diseases and their related mechanisms has been investigated in several studies. The aim of this study is to investigate the relationship between longitudinal change in total CHOLESTEROL as a main CVD risk factor and the shift of work, with controlling of the effect of baseline weight at time of recruitment.Methods: This retrospective cohort study consists of 674 employees of Polyacryl Iran Corporation (PIC) of Isfahan from 1992 to 2009. The relationship between shift of work and CHOLESTEROL based on weight status at baseline of recruitment with the effect of confounding factors including age, BMI, pre-employment CHOLESTEROL, glucose, triglyceride, urea, work types, education, and marital status was studied. A linear MIXED MODEL with skew-elliptical errors was used for analysing the data. Parameter estimation was done using BAYESIAN APPROACH using WinBUGS statistical software. Bayesian confidence interval was used for testing regression coefficients.Findings: Linear MIXED MODEL with skew-normal error was better compared to other models. In this model the relationship between shift of work and CHOLESTEROL changes with controlling of confounding factors was significant in those who were not overweight at baseline (β=2.25, P<0.001, 95% CI=0.67, 3.88), but was not significant for those who were overweight at baseline of employment.Conclusion: By increasing of age, the mean rate of CHOLESTEROL changes was significantly higher in SHIFT WORKers who had normal weight at baseline of recruitment compared with SHIFT WORKers who were overweight at baseline of recruitment. Furthermore, linear MIXED MODEL with heavy tailed and skewed error indicate better fitting than the standard linear MIXED MODEL.

Cites

No record.

References

No record.

Cite

APA: Copy

SALEHI MARZIJARANI, MOHAMMAD, KAZEMI, IRAJ, & HASSANZADEH, AKBAR. (2012). APPLICATION OF ROBUST LINEAR MIXED MODEL TO STUDY THE RELATIONSHIP BETWEEN SHIFT WORK AND LONGITUDINAL CHANGES OF CHOLESTEROL AND CONTROLLING OF INFLUENCE OF BASELINE WEIGHT. HEALTH SYSTEM RESEARCH, 8(5), 887-895. SID. https://sid.ir/paper/192698/en

Vancouver: Copy

SALEHI MARZIJARANI MOHAMMAD, KAZEMI IRAJ, HASSANZADEH AKBAR. APPLICATION OF ROBUST LINEAR MIXED MODEL TO STUDY THE RELATIONSHIP BETWEEN SHIFT WORK AND LONGITUDINAL CHANGES OF CHOLESTEROL AND CONTROLLING OF INFLUENCE OF BASELINE WEIGHT. HEALTH SYSTEM RESEARCH[Internet]. 2012;8(5):887-895. Available from: https://sid.ir/paper/192698/en

IEEE: Copy

MOHAMMAD SALEHI MARZIJARANI, IRAJ KAZEMI, and AKBAR HASSANZADEH, “APPLICATION OF ROBUST LINEAR MIXED MODEL TO STUDY THE RELATIONSHIP BETWEEN SHIFT WORK AND LONGITUDINAL CHANGES OF CHOLESTEROL AND CONTROLLING OF INFLUENCE OF BASELINE WEIGHT,” HEALTH SYSTEM RESEARCH, vol. 8, no. 5, pp. 887–895, 2012, [Online]. Available: https://sid.ir/paper/192698/en

Related Journal Papers