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Table 2 Multi-variable-adjusted odds ratio and 95 % CI of obesity and hypertension per tertile (T) of Dietary Guideline Index (DGI) in a nationally representative sample of Australian men (n = 2346) and women (n = 2562)

From: Diet quality is associated with obesity and hypertension in Australian adults: a cross sectional study

 

Dietary guideline index

P-trenda

T1

T2

T3

Overweight and obese

 Menb

  Cases, n

587

547

501

-

  Proportion, %

71.3

70.0

69.8

-

  Crude

1.0

0.94 (0.68, 1.31)

0.92 (0.65, 1.32)

0.68

  Model 1

1.0

0.85 (0.60, 1.19)

0.84 (0.59, 1.20)

0.32

  Model 2

1.0

0.71 (0.49, 1.02)

0.64 (0.45, 0.92)

0.014

 Women

  Cases, n

404

505

551

-

  Proportion, %

58.1

56.9

55.1

-

  Crude

1.0

0.95 (0.71, 1.28)

0.89 (0.65, 1.21)

0.43

  Model 1

1.0

0.88 (0.65, 1.20)

0.75 (0.55, 1.02)

0.06

  Model 2

1.0

0.83 (0.58, 1.19)

0.68 (0.48, 0.96)

0.025

Central adiposity

 Men

  Cases, n

508

461

430

-

  Proportion, %

61.0

58.3

59.4

-

  Crude

1.0

0.89 (0.65, 1.22)

0.94 (0.68, 1.30)

0.66

  Model 1

1.0

0.77 (0.56, 1.05)

0.83 (0.59, 1.19)

0.29

  Model 2

1.0

0.66 (0.48, 0.93)

0.68 (0.48, 0.97)

0.030

 Women

  Cases, n

494

597

606

-

  Proportion, %

69.5

66.4

63.7

-

  Crude

1.0

0.87 (0.61, 1.23)

0.77 (0.55, 1.07)

0.12

  Model 1

1.0

0.71 (0.50, 1.02)

0.56 (0.41, 0.79)

0.001

  Model 2

1.0

0.70 (0.47, 1.06)

0.53 (0.37, 0.77)

0.001

Hypertensionc

 Men

  Cases, n

225

187

139

-

  Proportion, %

27.0

23.6

19.1

-

  Crude

1.0

0.84 (0.64, 1.10)

0.64 (0.45, 0.91)

0.011

  Model 1

1.0

0.68 (0.51, 0.92)

0.53 (0.37, 0.76)

0.001

  Model 2

1.0

0.67 (0.49, 0.93)

0.52 (0.35, 0.78)

0.001

  Model 3

1.0

0.71 (0.52, 0.99)

0.56 (0.37, 0.85)

0.006

 Women

  Cases, n

125

190

192

-

  Proportion, %

17.6

21.1

20.2

-

  Crude

1.0

1.26 (0.86, 1.85)

1.19 (0.75, 1.88)

0.48

  Model 1

1.0

1.03 (0.67, 1.59)

0.81 (0.49, 1.34)

0.36

  Model 2

1.0

1.08 (0.69, 1.69)

0.86 (0.50, 1.49)

0.54

  Model 3

1.0

1.13 (0.73, 1.75)

0.90 (0.52, 1.53)

0.62

  1. a Data were analyzed using multi-variable-adjusted logistic regression. Model 1: adjusted for age and education; Model 2: additionally adjusted for smoking, physical activity, urban or rural location, energy intake misreporting and information on whether a participant was on a diet and whether their dietary recall was typical of their habitual consumption; Model 3: additionally adjusted for body mass index
  2. b Analyses were based on n = 2324 due to exclusion of underweight men
  3. c Hypertension was defined as blood pressure ≥140/90 mmHg
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BMC Public Health

ISSN: 1471-2458

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