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Relationship between sitting time and anthropometric indices: Findings of Yazd health study (YaHS)
Masoud Mirzaei1, Maryam Askari2, Nasim Namiranian2
1Yazd Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Background:
The abnormal anthropometric indices are one of the main risk factors of the non-communicable diseases. The purpose of this study was to determine the relationship between sitting time and anthropometric indices.
Methods:
This cross sectional analytic study was conducted on 10000 adult 20-69 years old residents of Yazd in 2013-2014. The anthropometric indices were measured according to the World Health Organization (WHO) standards and using the calibrated instruments. Data were analyzed by SPSS version 22. Statistical analysis were percentage, mean, standard deviation (SD), Chi-square test and Binary Logistic Legression (BLR). with significance level of 0.05.
Results:
The findings showed that 49.9% of the participants were male. After the confounders adjustment, the Odds Ratio (OR) of abnormal waist to hip ratio (WHR) and sitting time was 0.7 (95% CI = 0.5-0.9) in people with daily sitting of 4-6 h at work (p = 0.03). The OR of abnormal waist to height ratio (WHtR) was 0.7 (95% CI = 0.5-0.9) in individuals with sitting of 1-3 h per day at work (p = 0.02). Furthermore, the OR of abnormal waist circumference (WC) and sitting time was 1.7 (95% CI = 1.0-2.8) in participants who were sitting 10 h or more per day at work (p = 0.04).
Conclusions:
Decreased sitting time per day at work can prevent from abnormal WHR, WHtR and WC.
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