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To explore the association between the Sleep Regularity Index (SRI) and central obesity, as well as the differences among different age and gender groups, to provide a reference for research on sleep regularity and central obesity in the population.
A questionnaire survey and objective sleep monitoring were conducted among individuals aged 40 to 65 who underwent health check-ups at the First People’s Hospital of Fuquan city from March to November 2022, ultimately including 522 participants with complete data. The association between SRI and the risk of central obesity was assessed using a non-conditional binary logistic regression model and restricted cubic splines, along with subgroup analyses based on gender and age.
Among the participants included in the study, 331 individuals (64.41%) were classified as having central obesity. After adjusting for confounding variables, the results from the restricted cubic splines indicated that when the SRI score exceeded 72.67, the risk of central obesity gradually decreased with increasing SRI scores. The non-conditional binary logistic regression model revealed that individuals with more regular sleep patterns had a lower risk of central obesity compared to those with severely irregular sleep patterns. Compared to the lowest SRI quartile (Q1), the odds ratios (OR) for Q3 and Q4 were 0.56(95%CI: 0.32-0.99) and 0.51 (95%CI: 0.29-0.90), respectively. Subgroup analyses showed that in male participants and those aged 50 and above, the risk of central obesity decreased with more regular sleep patterns. In males, compared to Q1, the OR for Q3 was 0.41 (95%CI: 0.19-0.91) and for Q4 was 0.37 (95%CI: 0.16-0.86). In the population aged ≥50, the OR for Q3 was 0.41(95%CI: 0.19-0.89) and for Q4 was 0.31 (95%CI: 0.14-0.71). Sensitivity analyses yielded consistent results.
There is a certain association between sleep regularity, as assessed by the SRI and central obesity. Higher SRI scores are associated with a lower risk of developing central obesity, particularly in males and individuals aged 50 and above.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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