Universidade Estadual do Norte do Paraná, Graduate Program in Education, Jacarezinho, Paraná, Brazil.
Universidade Estadual do Norte do Paraná, Center of Technological Sciences, Bandeirantes, Paraná, Brazil.
Sleep Health. 2022 Aug;8(4):406-409. doi: 10.1016/j.sleh.2022.01.004. Epub 2022 Apr 28.
Most studies in developing countries suggest that less total sleep time (TST) increases subsequent perceived stress (PS) more consistently than the inverse, but have used statistical models that are not optimal when ratings are measured in close proximity.
We used multilevel dynamic structural equation modeling with Bayesian estimation, ideal for assessing longitudinal daily dynamic interplay between self-reported TST and PS (minimum of 30 days) in 92 Brazilian pre-university students.
TST showed lower inertia than PS (autoregressive effect: TST perturbations influenced subsequent TST ratings less so than corresponding PS measures) and exerted negative prospective effects on PS (cross-lagged effect).
In our developing nation sample, PS deviations from mean ratings took longer to return to baseline values than TST and PS was more sensitive to changes in prior TST than vice-versa, confirming previous findings. Future studies should confirm these findings with objective TST and stress measures.
大多数发展中国家的研究表明，总睡眠时间（TST）减少比相反情况更一致地增加随后的感知压力（PS），但这些研究使用的统计模型在评分紧密接近时并不最佳。
我们使用多层次动态结构方程建模和贝叶斯估计，这非常适合评估 92 名巴西大学生中自我报告的 TST 和 PS（至少 30 天）之间的纵向每日动态相互作用。
TST 的惯性低于 PS（自回归效应：TST 的波动对随后的 TST 评分的影响小于相应的 PS 测量），并且对 PS 产生负向预期影响（交叉滞后效应）。
在我们的发展中国家样本中，PS 偏离平均评分值需要更长时间才能恢复到基线值，而 PS 对 TST 变化的敏感性大于 TST 对 PS 变化的敏感性，这证实了先前的发现。未来的研究应使用客观的 TST 和压力测量来证实这些发现。
