Table 2.

Social contact and support descriptive statistics by cognitive impairment status.

	All respondents		No impairment	Cognitive impairment
	Mean (SD) or percent	[IQR]	Mean or percent	Mean or percent
Named contacts	3.1	[2, 4]	3.2	2.0
Communication events per month	60.6 (38.3)	[30, 90]	62.6	40.0
Contact kinship
Named kin	2.4	[1, 3]	2.4	1.7
Any named non-kin	35.5%		37.3%	17.3%
Percent of named contacts who are kin	79.1%	[67%, 100%]	78.5%	86.9%
Contact distance
Same household	0.8	[0, 1]	0.8	0.7
Same village	1.3	[0, 2]	1.3	0.8
Agincourt area	0.4	[0, 0]	0.4	0.2
Elsewhere South Africa	0.5	[0, 1]	0.5	0.2
Egonet effective size
Effective size (range 1–5.7)	1.1	[1, 1]	1.1	1.1
Support types
Informational, per month	29.3 (33.1)	[4, 40]	30.4	17.8
Emotional, per month	26.5 (32.8)	[4, 35]	27.5	16.3
Financial, per month	15.0 (22.2)	[1, 30]	15.5	10.5
Physical, per month	24.5 (26.1)	[4, 34]	25.3	15.5

Note. IQR: Interquartile range; SD: Standard deviation. SD only given when used as a unit of analysis in subsequent regression analysis.