Development of a healthy dietary habits index for New Zealand adults

Jyh Eiin Wong, Jillian J. Haszard, Anna S. Howe, Winsome R. Parnell, Paula M.L. Skidmore

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Healthful dietary habits are individually associated with better nutrient intake and positive health outcomes; however, this information is rarely examined together to validate an indicator of diet quality. This study developed a 15-item Healthy Dietary Habits Index (HDHI) based on self-reported dietary habits information collected in the 2008/09 New Zealand Adult Nutrition Survey. The validity of HDHI as a diet quality index was examined in relation to sociodemographic factors, 24-diet recall derived nutrient intakes, and nutritional biomarkers in a representative sample of adults aged 19 years and above. Linear regression models were employed to determine associations between HDHI quintiles and energy-adjusted nutrient data and nutritional biomarkers. Significantly higher HDHI scores were found among women, older age groups, Non-Māori or Pacific ethnic groups, and less socioeconomically-deprived groups (all p < 0.001). Increasing quintiles of HDHI were associated with higher intakes of dietary fibre and seven micronutrients including calcium, iron, and vitamin C, and lower intakes of energy, macronutrients, sodium, zinc, vitamins B6 and B12. Associations in the expected directions were also found for urinary sodium, whole blood folate, serum and red blood cell folate, and plasma selenium (all p < 0.001). The present findings suggest that the HDHI is a valid measure of diet quality as it is capable of discerning quality of diets of subgroups and ranking nutrient intakes among NZ adults.

Original languageEnglish
Article number454
JournalNutrients
Volume9
Issue number5
DOIs
Publication statusPublished - 1 May 2017

Fingerprint

nutritional adequacy
Feeding Behavior
New Zealand
nutrient intake
folic acid
Diet
biomarkers
sodium
Food
diet recall
pyridoxine
vitamin B12
nationalities and ethnic groups
blood serum
dietary minerals
Folic Acid
selenium
Linear Models
energy intake
dietary fiber

Keywords

  • Diet quality
  • Food habits
  • New Zealand adults
  • Nutrient intake

ASJC Scopus subject areas

  • Food Science

Cite this

Wong, J. E., Haszard, J. J., Howe, A. S., Parnell, W. R., & Skidmore, P. M. L. (2017). Development of a healthy dietary habits index for New Zealand adults. Nutrients, 9(5), [454]. https://doi.org/10.3390/nu9050454

Development of a healthy dietary habits index for New Zealand adults. / Wong, Jyh Eiin; Haszard, Jillian J.; Howe, Anna S.; Parnell, Winsome R.; Skidmore, Paula M.L.

In: Nutrients, Vol. 9, No. 5, 454, 01.05.2017.

Research output: Contribution to journalArticle

Wong, JE, Haszard, JJ, Howe, AS, Parnell, WR & Skidmore, PML 2017, 'Development of a healthy dietary habits index for New Zealand adults', Nutrients, vol. 9, no. 5, 454. https://doi.org/10.3390/nu9050454
Wong, Jyh Eiin ; Haszard, Jillian J. ; Howe, Anna S. ; Parnell, Winsome R. ; Skidmore, Paula M.L. / Development of a healthy dietary habits index for New Zealand adults. In: Nutrients. 2017 ; Vol. 9, No. 5.
@article{2bffedc5513d4956b4ae482893efea48,
title = "Development of a healthy dietary habits index for New Zealand adults",
abstract = "Healthful dietary habits are individually associated with better nutrient intake and positive health outcomes; however, this information is rarely examined together to validate an indicator of diet quality. This study developed a 15-item Healthy Dietary Habits Index (HDHI) based on self-reported dietary habits information collected in the 2008/09 New Zealand Adult Nutrition Survey. The validity of HDHI as a diet quality index was examined in relation to sociodemographic factors, 24-diet recall derived nutrient intakes, and nutritional biomarkers in a representative sample of adults aged 19 years and above. Linear regression models were employed to determine associations between HDHI quintiles and energy-adjusted nutrient data and nutritional biomarkers. Significantly higher HDHI scores were found among women, older age groups, Non-Māori or Pacific ethnic groups, and less socioeconomically-deprived groups (all p < 0.001). Increasing quintiles of HDHI were associated with higher intakes of dietary fibre and seven micronutrients including calcium, iron, and vitamin C, and lower intakes of energy, macronutrients, sodium, zinc, vitamins B6 and B12. Associations in the expected directions were also found for urinary sodium, whole blood folate, serum and red blood cell folate, and plasma selenium (all p < 0.001). The present findings suggest that the HDHI is a valid measure of diet quality as it is capable of discerning quality of diets of subgroups and ranking nutrient intakes among NZ adults.",
keywords = "Diet quality, Food habits, New Zealand adults, Nutrient intake",
author = "Wong, {Jyh Eiin} and Haszard, {Jillian J.} and Howe, {Anna S.} and Parnell, {Winsome R.} and Skidmore, {Paula M.L.}",
year = "2017",
month = "5",
day = "1",
doi = "10.3390/nu9050454",
language = "English",
volume = "9",
journal = "Nutrients",
issn = "2072-6643",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "5",

}

TY - JOUR

T1 - Development of a healthy dietary habits index for New Zealand adults

AU - Wong, Jyh Eiin

AU - Haszard, Jillian J.

AU - Howe, Anna S.

AU - Parnell, Winsome R.

AU - Skidmore, Paula M.L.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Healthful dietary habits are individually associated with better nutrient intake and positive health outcomes; however, this information is rarely examined together to validate an indicator of diet quality. This study developed a 15-item Healthy Dietary Habits Index (HDHI) based on self-reported dietary habits information collected in the 2008/09 New Zealand Adult Nutrition Survey. The validity of HDHI as a diet quality index was examined in relation to sociodemographic factors, 24-diet recall derived nutrient intakes, and nutritional biomarkers in a representative sample of adults aged 19 years and above. Linear regression models were employed to determine associations between HDHI quintiles and energy-adjusted nutrient data and nutritional biomarkers. Significantly higher HDHI scores were found among women, older age groups, Non-Māori or Pacific ethnic groups, and less socioeconomically-deprived groups (all p < 0.001). Increasing quintiles of HDHI were associated with higher intakes of dietary fibre and seven micronutrients including calcium, iron, and vitamin C, and lower intakes of energy, macronutrients, sodium, zinc, vitamins B6 and B12. Associations in the expected directions were also found for urinary sodium, whole blood folate, serum and red blood cell folate, and plasma selenium (all p < 0.001). The present findings suggest that the HDHI is a valid measure of diet quality as it is capable of discerning quality of diets of subgroups and ranking nutrient intakes among NZ adults.

AB - Healthful dietary habits are individually associated with better nutrient intake and positive health outcomes; however, this information is rarely examined together to validate an indicator of diet quality. This study developed a 15-item Healthy Dietary Habits Index (HDHI) based on self-reported dietary habits information collected in the 2008/09 New Zealand Adult Nutrition Survey. The validity of HDHI as a diet quality index was examined in relation to sociodemographic factors, 24-diet recall derived nutrient intakes, and nutritional biomarkers in a representative sample of adults aged 19 years and above. Linear regression models were employed to determine associations between HDHI quintiles and energy-adjusted nutrient data and nutritional biomarkers. Significantly higher HDHI scores were found among women, older age groups, Non-Māori or Pacific ethnic groups, and less socioeconomically-deprived groups (all p < 0.001). Increasing quintiles of HDHI were associated with higher intakes of dietary fibre and seven micronutrients including calcium, iron, and vitamin C, and lower intakes of energy, macronutrients, sodium, zinc, vitamins B6 and B12. Associations in the expected directions were also found for urinary sodium, whole blood folate, serum and red blood cell folate, and plasma selenium (all p < 0.001). The present findings suggest that the HDHI is a valid measure of diet quality as it is capable of discerning quality of diets of subgroups and ranking nutrient intakes among NZ adults.

KW - Diet quality

KW - Food habits

KW - New Zealand adults

KW - Nutrient intake

UR - http://www.scopus.com/inward/record.url?scp=85019031336&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019031336&partnerID=8YFLogxK

U2 - 10.3390/nu9050454

DO - 10.3390/nu9050454

M3 - Article

C2 - 28467392

AN - SCOPUS:85019031336

VL - 9

JO - Nutrients

JF - Nutrients

SN - 2072-6643

IS - 5

M1 - 454

ER -