Table 3 Subgroup analysis for the associations between glycemic status and risk of all-cause mortality in individuals with dementia

All-cause dementia

Age (years)

< 0.001

 40–64

1 (reference)

1.13 (1.02–1.25)

1.96 (1.67–2.30)

1.45 (1.27–1.66)

1.77 (1.60–1.96)

 ≥ 65

1 (reference)

1.02 (1.00–1.05)

1.32 (1.28–1.37)

1.15 (1.11–1.20)

1.42 (1.39–1.46)

Sex

0.052

 Men

1 (reference)

1.02 (0.98–1.05)

1.28 (1.21–1.36)

1.20 (1.14–1.27)

1.41 (1.36–1.46)

 Women

1 (reference)

1.04 (1.01–1.07)

1.39 (1.33–1.46)

1.14 (1.08–1.20)

1.45 (1.40–1.50)

Alzheimer’s disease

Age (years)

< 0.001

 40–64

1 (reference)

1.13 (0.99–1.29)

2.03 (1.66–2.49)

1.56 (1.31–1.86)

1.79 (1.57–2.04)

 ≥ 65

1 (reference)

1.02 (1.00–1.05)

1.32 (1.26–1.38)

1.16 (1.11–1.22)

1.42 (1.38–1.46)

Sex

0.172

 Men

1 (reference)

1.00 (0.96–1.04)

1.29 (1.20–1.38)

1.19 (1.11–1.27)

1.38 (1.32–1.45)

 Women

1 (reference)

1.05 (1.01–1.08)

1.37 (1.30–1.45)

1.17 (1.10–1.24)

1.46 (1.40–1.51)

Vascular dementia

Age (years)

0.150

 40–64

1 (reference)

1.04 (0.82–1.30)

1.81 (1.24–2.63)

1.33 (0.99–1.78)

1.91 (1.54–2.37)

 ≥ 65

1 (reference)

1.06 (0.99–1.13)

1.42 (1.28–1.59)

1.15 (1.03–1.28)

1.49 (1.39–1.60)

Sex

0.041

 Men

1 (reference)

1.14 (1.03–1.25)

1.31 (1.12–1.53)

1.22 (1.06–1.40)

1.55 (1.41–1.71)

 Women

1 (reference)

0.99 (0.90–1.09)

1.59 (1.38–1.82)

1.11 (0.95–1.29)

1.49 (1.36–1.63)