Skip to main content

Table 4 Adjusted hazard ratios of total dementia, Alzheimer’s disease, and vascular dementia according to quartiles of dietary fiber intakea

From: Long-term association of vegetable and fruit intake with risk of dementia in Japanese older adults: the Hisayama study

Nutrient intake levels

(g/1000 kcal)

Total dementia

Alzheimer’s disease

Vascular dementia

Number of events/ PYs

Hazard ratio (95% CI)

Number of events/ PYs

Hazard ratio (95% CI)

Number of events/ PYs

Hazard ratio (95% CI)

Multivariable-adjustedb,c

Multivariable-adjustedb,c

Multivariable-adjustedb,c

Total dietary fiber

 Q1 (M: ≤4.74; W: ≤5.79)

114/3455

1.00 (reference)

75/3455

1.00 (reference)

31/3455

1.00 (reference)

 Q2 (M: 4.75-5.95; W: 5.80-7.14)

125/3857

0.92 (0.71, 1.18)

75/3857

0.85 (0.61, 1.17)

40/3857

1.06 (0.66, 1.71)

 Q3 (M: 5.96-7.40; W: 7.15-8.49)

107/3925

0.75 (0.57, 0.99)

64/3925

0.70 (0.49, 0.99)

37/3925

0.94 (0.57, 1.55)

 Q4 (M: ≥7.41; W: ≥8.50)

118/3914

0.79 (0.58, 1.08)

72/3914

0.74 (0.50, 1.11)

36/3914

0.90 (0.51, 1.59)

P-trend

 

0.07

 

0.08

 

0.65

Soluble dietary fiber

 Q1 (M: ≤0.65; W: ≤0.85)

114/3437

1.00 (reference)

70/3437

1.00 (reference)

34/3437

1.00 (reference)

 Q2 (M: 0.66-1.05; W: 0.86-1.22)

122/3771

0.95 (0.73, 1.23)

74/3771

0.97 (0.70, 1.36)

45/3771

1.04 (0.66, 1.65)

 Q3 (M: 1.06-1.47; W: 1.23-1.71)

110/4037

0.76 (0.57, 1.02)

73/4037

0.87 (0.60, 1.25)

26/4037

0.55 (0.31, 0.97)

 Q4 (M: ≥1.48; W: ≥1.72)

118/3906

0.86 (0.62, 1.20)

69/3906

0.87 (0.57, 1.34)

39/3906

0.84 (0.47, 1.51)

P-trend

 

0.20

 

0.44

 

0.30

Insoluble dietary fiber

 Q1 (M: ≤4.02; W: ≤4.83)

118/3471

1.00 (reference)

77/3471

1.00 (reference)

33/3471

1.00 (reference)

 Q2 (M: 4.03-4.91; W: 4.84-5.83)

114/3783

0.78 (0.60, 1.02)

68/3783

0.72 (0.52, 1.00)

35/3783

0.86 (0.53, 1.39)

 Q3 (M: 4.92-5.95; W: 5.84-6.81)

116/3940

0.75 (0.58, 0.99)

71/3940

0.69 (0.49, 0.98)

42/3940

0.99 (0.61, 1.60)

 Q4 (M: ≥5.96; W: ≥6.82)

116/3957

0.75 (0.56, 1.02)

70/3957

0.69 (0.47, 1.00)

34/3957

0.82 (0.47, 1.42)

P-trend

 

0.06

 

0.051

 

0.63

  1. a M men, W women, PYs person-years, Q quartile
  2. b Adjusted for age, sex, educational level, history of stroke, diabetes, systolic blood pressure, use of antihypertensive agent, electrocardiogram abnormalities, total cholesterol, body mass index, current drinking, current smoking, regular exercise, and intakes of total energy, protein, fat, and carbohydrate
  3. c n = 1060
Back to article page

BMC Geriatrics

ISSN: 1471-2318

Contact us