Table 3 Linear regression coefficients (95% CIs) for prospective associations of social network characteristics with global cognitive function
From: Social networks and cognitive function in older adults: findings from the HAPIEE study
Social network measure | Model 1a | Model 2b | Model 3c | |||
|---|---|---|---|---|---|---|
b | 95% CI | b | 95% CI | b | 95% CI | |
Network size of friends | ||||||
 None | − 0.02 | − 0.07, 0.03 | − 0.02 | − 0.07, 0.02 | − 0.03 | −0.07, 0.02 |
 1 or 2 | Reference | Reference | Reference | |||
 3 to 5 | 0.01 | −0.05, 0.08 | −0.03 | − 0.08, 0.03 | −0.01 | − 0.07, 0.04 |
 More than 5 | 0.06 | −0.05, 0.17 | −0.02 | − 0.11, 0.08 | −0.03 | − 0.12, 0.06 |
 P-trend | 0.095 | 0.787 | 0.643 | |||
Network size of relatives | ||||||
 None | 0.00 | −0.05, 0.05 | 0.00 | −0.04, 0.04 | 0.00 | −0.04, 0.04 |
 1 or 2 | Reference | Reference | Reference | |||
 3 to 5 | 0.01 | −0.05, 0.07 | −0.01 | − 0.06, 0.04 | 0.00 | − 0.05, 0.04 |
 More than 5 | 0.08 | −0.03, 0.19 | 0.01 | −0.09, 0.11 | 0.00 | −0.09, 0.10 |
 P-trend | 0.425 | 0.815 | 0.828 | |||
Contact frequency with friends | ||||||
 No friends | −0.13 | −0.20, − 0.06 | −0.07 | − 0.13, − 0.01 | −0.01 | − 0.07, 0.05 |
 Less than once a month | Reference | Reference | Reference | |||
 About once a month | 0.06 | 0.01, 0.11 | 0.02 | −0.02, 0.06 | 0.02 | −0.02, 0.06 |
 Several times a month | 0.00 | −0.05, 0.05 | −0.02 | − 0.07, 0.02 | −0.02 | − 0.06, 0.03 |
 About once a week | 0.02 | −0.03, 0.07 | 0.00 | −0.04, 0.05 | 0.03 | −0.02, 0.07 |
 Several times a week | −0.04 | −0.10, 0.02 | − 0.03 | −0.08, 0.02 | 0.01 | −0.04, 0.06 |
 P-trend | 0.580 | 0.827 | 0.535 | |||
Contact frequency with relatives | ||||||
 No relatives | −0.01 | −0.12, 0.10 | − 0.01 | −0.11, 0.08 | − 0.01 | −0.10, 0.08 |
 Less than once a month | Reference | Reference | Reference | |||
 About once a month | −0.07 | −0.13, − 0.01 | −0.06 | − 0.11, − 0.01 | −0.05 | − 0.10, − 0.01 |
 Several times a month | 0.03 | − 0.03, 0.09 | −0.02 | − 0.07, 0.13 | −0.01 | − 0.06, 0.03 |
 About once a week | −0.04 | − 0.09, 0.01 | −0.06 | − 0.11, − 0.02 | −0.05 | − 0.09, − 0.01 |
 Several times a week | 0.00 | − 0.04, 0.06 | −0.02 | − 0.06, 0.03 | −0.03 | − 0.07, 0.01 |
 P-trend | 0.583 | 0.405 | 0.203 | |||
Participation in social activities | ||||||
 Never or not a member | Reference | Reference | Reference | |||
 At least several times a year | 0.15 | 0.09, 0.21 | 0.06 | 0.01, 0.11 | 0.01 | −0.04, 0.06 |
 Several times a month or more | 0.19 | 0.13, 0.25 | 0.08 | 0.03, 0.13 | 0.03 | −0.02, 0.08 |
 P-trend | < 0.001 | < 0.001 | 0.233 | |||