Table 4 Multilevel logistic regression model for edentulism unadjusted and adjusted by covariates

Individual cognitive SC^f

Low

1.17 (0.96–1.44)

1.13 (0.91–1.41)

1.14 (0.91–1.43)

Mediate

0.93 (0.76–1.14)

0.91 (0.74–1.11)

0.92 (0.75–1.12)

High

Reference

Reference

Reference

Individual structural SC^f

Low

2.39 (1.86–3.08)\(^{***}\)

1.54( 1.18–2.02)\(^{**}\)

1.54 (1.18–2.01)\(^{**}\)

Mediate

1.48 (1.20–1.82)\(^{***}\)

1.25 (1.00–1.57)\(^{*}\)

1.24 (0.99–1.55)

High

Reference

Reference

Reference

Community cognitive SC^f

Low

1.08 (0.76–1.53)

1.00 (0.70–1.44)

1.05 (0.74–1.50)

1.03 (0.72–1.48)

Mediate

1.12 (0.78–1.61)

1.08 (0.76–1.55)

1.02 (0.71–1.47)

1.01 (0.70–1.45)

High

Reference

Reference

Reference

Reference

Community structural SC^f

Low

1.77 (1.24–2.53)**

1.37 (0.94–1.99)

2.11 (1.45–3.07)***

2.14 (1.47–3.12)***

Mediate

1.04 (0.76–1.43)

0.91 (0.66–1.27)

1.10 (0.79–1.54)

1.11 (0.79–1.55)

High

Reference

Reference

Reference

Reference

Random effects

Community variance (SE)

0.515 (0.097)

0.449 (0.091)

0.469 (0.095)

0.397 (0.083)

0.403 (0.085)

Intraclass correlation (%)

13.53%

12.02%

12.49%

10.78%

10.93%