dutch_healthy_diet_index
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dutch_healthy_diet_index [2022/06/21 15:21] laura [Calculations] |
dutch_healthy_diet_index [2025/02/05 14:49] (current) |
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| The DHD index scores for Lifelines were developed by researchers from [[https://www.wur.nl/nl/Personen/Mireille-dr.ir.-AM-Mireille-Baart.htm|Wageningen University and Research]] and is a tool to assess a participant's own diet quality and adherence to the 2015 Dutch dietary guidelines. On the Lifelines data, the [[Lifelines Diet Score]] has been developed as well, which is a tool to assess relative diet quality to the overall Lifelines population. | The DHD index scores for Lifelines were developed by researchers from [[https://www.wur.nl/nl/Personen/Mireille-dr.ir.-AM-Mireille-Baart.htm|Wageningen University and Research]] and is a tool to assess a participant's own diet quality and adherence to the 2015 Dutch dietary guidelines. On the Lifelines data, the [[Lifelines Diet Score]] has been developed as well, which is a tool to assess relative diet quality to the overall Lifelines population. | ||
| - | The DHD index will soon be available for request in the Lifelines catalogue or by email (data@lifelines.nl). When this data has been used in your research, you will have to include a reference to the the following paper: | + | The DHD index can be requested in the [[https://data-catalogue.lifelines.nl/|Lifelines catalogue]]. When this data has been used in your research, you will have to include a reference to the the following papers: |
| - | * [[...]] **Paper to be added** | + | * [[https://doi.org/10.3390/nu14010048|Baart, A. Mireille, et al. "Dietary intake in the lifelines cohort study: Baseline results from the flower food frequency questionnaire among 59,982 participants." Nutrients 14.1 (2021): 48.]] |
| + | * [[https://doi.org/10.1038/s41430-023-01372-x|Baart, A. Mireille, et al. "Assessment of the Dutch Healthy Diet index 2015 in the Lifelines cohort study at baseline." European Journal | ||
| + | of Clinical Nutrition 78.3 (2024): 217-227]]. | ||
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| ===== The DHD index===== | ===== The DHD index===== | ||
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| In this first step, the [[FFQ]] items are assigned to their specific components. For example: for the FFQ heart only calculation, the grams per day of item number 82 (peanuts and nuts with hot meal) and 96 (peanuts and nuts inbetween meals) are added to the category "Nuts". Some special cases are discussed below: | In this first step, the [[FFQ]] items are assigned to their specific components. For example: for the FFQ heart only calculation, the grams per day of item number 82 (peanuts and nuts with hot meal) and 96 (peanuts and nuts inbetween meals) are added to the category "Nuts". Some special cases are discussed below: | ||
| * **Some items fall into two categories.** For example: for the FFQ heart only calculation, item number 25 (chocolate milk) is added to the category "Dairy" and "Sugarsweetened beveraged and fruit juices". | * **Some items fall into two categories.** For example: for the FFQ heart only calculation, item number 25 (chocolate milk) is added to the category "Dairy" and "Sugarsweetened beveraged and fruit juices". | ||
| - | * **Some items are divided into two categories.** For example: for the FFQ heart only calculation, 77.96% of the intake of item number 65 (other types of fish) is added to the category “Fish_lean” and 22.04% of the intake of this item is added to the category “Fish_fat”. These percentages are assumptions that are based on the Dutch national Food consumpumption Survey (([[https://rivm.openrepository.com/handle/10029/261553|Rossum CTM, Fransen HP, Verkaik-Kloosterman J, Buurma-Rethans EJM. Ocké MC. Dutch National Food Consumption Survey 2007-2010: Diet of Children Aged 7 to 69 Years. RIVM, the Netherlands. 2011.]])). | + | * **Some items are divided into two categories.** For example: for the FFQ heart only calculation, 77.96% of the intake of item number 65 (other types of fish) is added to the category “Fish_lean” and 22.04% of the intake of this item is added to the category “Fish_fat”. These percentages are assumptions that are based on the Dutch national Food consumpumption Survey (([[https://rivm.openrepository.com/handle/10029/261553|Van Rossum et al. (2011). Dutch National Food Consumption Survey 2007-2010 : Diet of children and adults aged 7 to 69 years; RIVM.]])). |
| * **Some items are not included.** FFQ items that are not related to one of the 2015 Dutch Dietary Guidelines, or for which too many assumptions have to be made, are not added to a specific component and thus are not used to calculate the DHD index. | * **Some items are not included.** FFQ items that are not related to one of the 2015 Dutch Dietary Guidelines, or for which too many assumptions have to be made, are not added to a specific component and thus are not used to calculate the DHD index. | ||
| Once the food items have been added to their specific category, an aggregate variable per category is calculated to obtain a total intake of the product group per participant per day. | Once the food items have been added to their specific category, an aggregate variable per category is calculated to obtain a total intake of the product group per participant per day. | ||
dutch_healthy_diet_index.1655817686.txt.gz · Last modified: 2025/02/05 14:49 (external edit)
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