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Table 5 Interactive effect analysis of visual impairments and subjective cognitive complaints

From: Interaction between visual impairment and subjective cognitive complaints on physical activity impairment in U.S. older adults: NHANES 2005–2008

Measures

Unweighted

Weighted

Estimates

95% CI

Estimates

95% CI

Subjective visual impairments and subjective cognitive complaints

 RERI

8.38

(3.29, 16.13)

6.52

(0.60, 16.52)

 AP

0.61

(0.34, 0.75)

0.52

(0.04, 0.72)

 SI

2.92

(1.65, 5.16)

2.30

(1.11, 4.75)

Objective visual impairments and subjective cognitive complaints

 RERI

3.53

(-1.41, 12.54)

6.33

(-1.07, 26.07)

 AP

0.36

(-0.32, 0.64)

0.52

(-0.34, 0.74)

 SI

1.68

(0.77, 3.65)

2.30

(0.81, 6.52)

  1. RERI, relative excess risk due to interaction; AP, attributable proportion of interaction; S, synergy index; CI, confidence interval; Bold P values signal statistical significance