Skip to main content

Table 2 Odds ratios (ORs) and 95% confidence intervals (CIs) for eczema and rhinoconjunctivitis in relation to dietary intake of polyunsaturated fatty acids in 23,388 schoolchildren, Ryukyus Child Health Study, Japan

From: Polyunsaturated fatty acid intake and prevalence of eczema and rhinoconjunctivitis in Japanese children: The Ryukyus Child Health Study

 

Eczema

Rhinoconjunctivitis

Variable1

Prevalence (%)

Crude OR (95% CI)

Adjusted OR (95% CI)2

Prevalence (%)

Crude OR (95% CI)

Adjusted OR (95% CI)2

Polyunsaturated fatty acids

      

   Q1 (10.7)

6.1

1.00

1.00

8.8

1.00

1.00

   Q2 (12.8)

6.8

1.13 (0.96-1.34)

1.10 (0.94-1.31)

7.6

0.86 (0.74-0.99)

0.86 (0.74-0.999)

   Q3 (14.2)

7.7

1.29 (1.10-1.51)

1.23 (1.05-1.45)

7.2

0.81 (0.69-0.94)

0.81 (0.70-0.95)

   Q4 (15.6)

6.5

1.08 (0.92-1.28)

1.02 (0.86-1.21)

7.9

0.89 (0.77-1.03)

0.89 (0.77-1.04)

   Q5 (18.0)

7.9

1.33 (1.13-1.56)

1.26 (1.07-1.48)

8.6

0.98 (0.85-1.13)

0.97 (0.83-1.12)

P for trend

 

0.005

0.04

 

0.96

0.83

n-3 Polyunsaturated fatty acids

      

   Q1 (1.3)

5.8

1.00

1.00

8.1

1.00

1.00

   Q2 (1.7)

6.9

1.20 (1.02-1.42)

1.16 (0.98-1.37)

8.2

1.01 (0.87-1.17)

1.01 (0.87-1.17)

   Q3 (2.0)

7.4

1.30 (1.10-1.53)

1.22 (1.04-1.45)

7.1

0.87 (0.75-1.01)

0.87 (0.74-1.01)

   Q4 (2.3)

6.9

1.21 (1.02-1.42)

1.12 (0.94-1.32)

8.1

1.00 (0.86-1.16)

0.99 (0.85-1.15)

   Q5 (2.8)

7.9

1.40 (1.19-1.64)

1.31 (1.11-1.54)

8.6

1.07 (0.93-1.24)

1.05 (0.90-1.22)

P for trend

 

0.0003

0.009

 

0.45

0.63

α-Linolenic acid (18:3 n-3)

      

   Q1 (1.0)

5.8

1.00

1.00

8.6

1.00

1.00

   Q2 (1.3)

6.7

1.17 (0.99-1.39)

1.14 (0.96-1.35)

8.0

0.93 (0.80-1.08)

0.93 (0.80-1.08)

   Q3 (1.5)

7.5

1.32 (1.12-1.56)

1.25 (1.06-1.47)

7.2

0.82 (0.71-0.95)

0.82 (0.71-0.96)

   Q4 (1.8)

7.1

1.24 (1.05-1.46)

1.15 (0.97-1.36)

8.1

0.94 (0.81-1.09)

0.94 (0.81-1.09)

   Q5 (2.2)

8.0

1. 41 (1.20-1.66)

1.31 (1.12-1.55)

8.2

0.95 (0.82-1.10)

0.93 (0.80-1.08)

P for trend

 

< 0.0001

0.003

 

0.57

0.41

Eicosapentaenoic acid (20:5 n-3)

      

   Q1 (0.03)

6.4

1.00

1.00

8.3

1.00

1.00

   Q2 (0.07)

6.8

1.06 (0.90-1.25)

1.04 (0.88-1.23)

7.8

0.94 (0.81-1.10)

0.95 (0.82-1.11)

   Q3 (0.09)

7.1

1.10 (0.94-1.30)

1.07 (0.91-1.26)

7.6

0.92 (0.79-1.06)

0.91 (0.78-1.06)

   Q4 (0.12)

7.5

1.18 (1.002-1.38)

1.15 (0.98-1.35)

7.5

0.90 (0.78-1.05)

0.90 (0.77-1.05)

   Q5 (0.21)

7.2

1.13 (0.96-1.33)

1.12 (0.95-1.31)

8.9

1.09 (0.94-1.26)

1.10 (0.95-1.27)

P for trend

 

0.06

0.09

 

0.41

0.42

Docosahexaenoic acid (22:6 n-3)

      

   Q1 (0.13)

6.9

1.00

1.00

8.5

1.00

1.00

   Q2 (0.20)

6.6

0.95 (0.81-1.12)

0.94 (0.80-1.11)

7.6

0. 89 (0.76-1.03)

0. 90 (0.77-1.05)

   Q3 (0.24)

7.5

1.08 (0.93-1.27)

1.04 (0.88-1.21)

7.6

0.88 (0.76-1.02)

0.86 (0.74-0.998)

   Q4 (0.30)

7.0

1.01 (0.86-1.18)

0.99 (0.84-1.16)

7.9

0.92 (0.79-1.06)

0.92 (0.79-1.06)

   Q5 (0.43)

7.0

1.01 (0.86-1.19)

1.01 (0.86-1.18)

8.5

1.00 (0.87-1.16)

1.00 (0.86-1.16)

P for trend

 

0.67

0.75

 

0.85

0.92

n-6 Polyunsaturated fatty acids

      

   Q1 (7.1)

6.1

1.00

1.00

8.6

1.00

1.00

   Q2 (8.8)

6.8

1.12 (0.95-1.32)

1.07 (0.91-1.27)

7.9

0.91 (0.78-1.05)

0.91 (0.78-1.05)

   Q3 (10.1)

7.2

1.19 (1.01-1.40)

1.14 (0.96-1.34)

7.7

0.88 (0.76-1.02)

0.90 (0.77-1.05)

   Q4 (11.3)

7.0

1.15 (0.97-1.35)

1.08 (0.91-1.27)

7.5

0.86 (0.74-1.001)

0.87 (0.75-1.02)

   Q5 (13.5)

8.0

1.33 (1.13-1.56)

1.26 (1.07-1.48)

8.5

0.99 (0.86-1.15)

0.98 (0.85-1.14)

P for trend

 

0.001

0.01

 

0.71

0.68

Linoleic acid (18:2 n-6)

      

   Q1 (6.9)

6.1

1.00

1.00

8.6

1.00

1.00

   Q2 (8.7)

6.8

1.12 (0.95-1.32)

1.08 (0.91-1.27)

7.9

0.91 (0.78-1.05)

0.91 (0.79-1.06)

   Q3 (9.9)

7.2

1.20 (1.02-1.41)

1.14 (0.97-1.34)

7.5

0.86 (0.74-1.002)

0.88 (0.76-1.03)

   Q4 (11.1)

6.9

1.13 (0.96-1.33)

1.06 (0.90-1.26)

7.5

0.86 (0.74-0.999)

0.87 (0.75-1.02)

   Q5 (13.3)

8.0

1.34 (1.14-1.57)

1.27 (1.08-1.49)

8.6

1.00 (0.87-1.16)

1.00 (0.86-1.15)

P for trend

 

0.001

0.01

 

0.77

0.76

Arachidonic acid (20:4 n-6)

      

   Q1 (0.07)

7.9

1.00

1.00

8.9

1.00

1.00

   Q2 (0.10)

7.5

0.95 (0.81-1.10)

0.92 (0.78-1.07)

7.8

0.87 (0.75-1.01)

0.88 (0.76-1.02)

   Q3 (0.12)

6.7

0.83 (0.71-0.98)

0.80 (0.68-0.94)

8.2

0.92 (0.79-1.06)

0.91 (0.78-1.05)

   Q4 (0.14)

6.3

0.79 (0.67-0.92)

0.76 (0.65-0.89)

7.5

0.84 (0.72-0.97)

0.83 (0.72-0.97)

   Q5 (0.17)

6.6

0.83 (0.71-0.97)

0.81 (0.69-0.95)

7.8

0.87 (0.75-1.01)

0.86 (0.74-0.997)

P for trend

 

0.002

0.0008

 

0.05

0.03

n-3/n-6 Polyunsaturated fatty acid ratio

      

   Q1 (0.17)

6.0

1.00

1.00

7.4

1.00

1.00

   Q2 (0.18)

7.1

1.20 (1.02-1.41)

1.17 (0.99-1.38)

7.8

1.06 (0.91-1.23)

1.05 (0.90-1.23)

   Q3 (0.20)

7.0

1.18 (0.997-1.39)

1.14 (0.96-1.34)

8.1

1.10 (0.94-1.28)

1.07 (0.92-1.25)

   Q4 (0.21)

7.6

1.28 (1.09-1.51)

1.21 (1.03-1.42)

8.0

1.08 (0.93-1.26)

1.04 (0.89-1.21)

   Q5 (0.23)

7.2

1.21 (1.03-1.43)

1.17 (0.99-1.38)

8.7

1.19 (1.03-1.38)

1.16 (0.99-1.35)

P for trend

 

0.02

0.07

 

0.03

0.11

  1. 1 Quintile medians in g/day adjusted energy intake using the residual method are given in parentheses, except for the ratio of n-3 to n-6 polyunsaturated fatty acids, which was based on crude intake in g/day.
  2. 2 Adjustment for age, sex, residential municipality, number of siblings, smoking in the household, body mass index, paternal and maternal history of allergic diseases, and paternal and maternal educational level.
Back to article page

BMC Public Health

ISSN: 1471-2458

Contact us