Table 1.

Correlations of cognitive performance with social isolation in Chinese elderly persons at each time point during 2011–2018

	Cog2011	Cog2013	Cog2015	Cog2018	SI2011	SI2013	SI2015	SI2018
Cog2011	1.00
Cog2013	0.62 a	1.00
Cog2015	0.63 a	0.69 a	1.00
Cog2018	0.60 a	0.66 a	0.69 a	1.00
SI2011	-0.23 a	-0.20 a	-0.20 a	-0.19 a	1.00
SI2013	-0.22 a	-0.24 a	-0.22 a	-0.21 a	0.32 a	1.00
SI2015	-0.21 a	-0.21 a	-0.24 a	-0.22 a	0.33 a	0.37 a	1.00
SI2018	-0.21 a	-0.22 a	-0.23 a	-0.25 a	0.29 a	0.34 a	0.38 a	1.00

Abbreviations: Cog Cognition, SI Social isolation

^ap < 0.01