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. Author manuscript; available in PMC: 2021 Jul 27.
Published in final edited form as: J R Stat Soc Ser A Stat Soc. 2020 May 8;183(4):1705–1726. doi: 10.1111/rssa.12570

Table 3.

Model-based sensitivity analyses

Mediators: brain hypoperfusion and white matter
disease
OR 90% CI Risk ratio 90% CI
Model 1
 Total effect 1.51 (1.22, 1.86) 1.27 (1.13, 1.42)
 Direct effect 1.31 (1.01, 1.72) 1.20 (1.03, 1.39)
 Indirect effect 1.15 (0.98, 1.35) 1.06 (0.97, 1.16)
Model 2
 Total effect 1.51 (1.22, 1.86) 1.27 (1.13, 1.42)
 Direct effect 1.34 (1.02, 1.75) 1.20 (1.04, 1.40)
 Indirect effect 1.13 (0.96, 1.32) 1.05 (0.96, 1.15)
Model 3§
 Total effect 1.51 (1.22, 1.86) 1.27 (1.13, 1.42)
 Direct effect 1.38 (1.05, 1.81) 1.22 (1.05, 1.42)
 Indirect effect 1.09 (0.93, 1.29) 1.04 (0.95, 1.14)
Model 4§§
 Total effect 1.54 (1.22, 1.95) 1.27 (1.12, 1.45)
 Direct effect 1.30 (0.97, 1.75) 1.18 (1.00, 1.39)
 Indirect effect 1.18 (0.99, 1.42) 1.08 (0.98, 1.20)

Model inputs were kept the same as in the original analysis.

Model inputs were kept the same as in the original analysis, except that the white matter disease cut-off changed to greater than 1 out of 9 points.

§

Model inputs were kept the same as in the original analysis, except that the white matter disease cut-off changed to greater than 3 out of 9 points.

§§

Model inputs were kept the same as in the original analysis, plus additional terms for baseline log10(interleukin-6 level), baseline log10(C-reactive protein level) depressive symptoms, income level and physical activity.