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["Supplementary table 2. Correlation of frailty with PAL and sleep quality in different age groups"]
["Variables","Total population",null,null,"Middle-aged adults",null,null,"Older people"]
[null,"Frailty staging","Sleep Quality","PAL","Frailty staging","Sleep Quality","PAL","Frailty staging","Sleep Quality","PAL"]
["Frailty staging",1,null,null,1,null,null,1]
["Sleep Quality","0.170**",1,null,"0.195**",1,null,"0.127**",1]
["PAL",0,-0.001,1,0.067,0.004,1,-0.051,-0.001,1]
["Notes: *P＜0.05, **P＜0.01.\nThe relationship between the three at different ages was analyzed according to the Kendall's tau-b test.\nPAL, physical activity level."]

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