Table 2 Multiple regression analysis of sarcopenia and the three factors of sarcopenia (grip strength, gait speed, ASMI) with cognitive impairment among multi-ethnics in the west China communities. (N = 4500)

 No

1.0(Ref)

1.0(Ref)

1.0(Ref)

 Mild

1.49 (1.16–1.92), .002

1.45 (1.12–1.87), .004

1.41 (1.10–1.82), .009

 Moderate-severe

3.41 (2.34–4.97),<.001

3.27 (2.23–4.79),<.001

3.05 (2.08–4.49),<.001

  No

1.0(Ref)

1.0(Ref)

1.0(Ref)

  Mild

1.47 (1.19–1.82),<.001

1.41 (1.14–1.75), .002

1.38 (1.11–1.71), .004

  Moderate-severe

2.24 (1.51–3.32),<.001

2.11 (1.42–3.14),<.001

2.00 (1.34–2.97), .001

  No

1.0(Ref)

1.0(Ref)

1.0(Ref)

  Mild

1.50 (1.22–1.86),<.001

1.44 (1.16–1.78), .001

1.42 (1.14–1.76), .001

  Moderate-severe

1.76 (1.22–2.56), .003

1.66 (1.14–2.42), .008

1.60 (1.09–2.33), .016

  No

1.0(Ref)

1.0(Ref)

1.0(Ref)

  Mild

1.33 (1.05–1.68), .017

1.31 (1.04–1.67), .025

1.29 (1.02–1.64), .038

  Moderat-severe

2.83 (1.96–4.07),<.001

2.74 (1.89–3.96),<.001

2.60 (1.79–3.77),<.001