ffq
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ffq [2020/09/01 13:08] trynke |
ffq [2022/01/05 10:44] (current) laura [Papers using Lifelines FFQ data] |
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| ====== Flower FFQ ====== | ====== Flower FFQ ====== | ||
| - | Dietary intake of [[start|Lifelines]] participants aged 13 years and older was assessed with a food frequency questionnaire (FFQ) ([[sections|section]]: [[nutrition]]).\\ | + | Dietary intake of [[start|Lifelines]] participants aged 13 years and older was assessed with a food frequency questionnaire (FFQ) developed for Lifelines by the department of [[https://www.wur.nl/en/Research-Results/Chair-groups/Agrotechnology-and-Food-Sciences/Human-Nutrition-and-Health.htm|Human Nutrition and Health]] at WUR ([[sections|section]]: [[nutrition]]).\\ |
| - | Children between 4-17 years old were asked a few general questions about their [[Children's diet (general)|diet/food intake]], and children between 8-12 years old filled in a [[Children's diet (FFQ-TNO)|Child FFQ developed by TNO]].\\ | + | Children between 8-12 years old filled in a [[Children's diet (FFQ-TNO)|Child FFQ developed by TNO]].\\ |
| + | In addition, children between 4-17 years old were asked a few general questions about their [[Children's diet (general)|diet/food intake]]\\ | ||
| The diet of [[infant diet (general)|newborns]] was assessed in the context of the birth cohort [[NEXT]]. | The diet of [[infant diet (general)|newborns]] was assessed in the context of the birth cohort [[NEXT]]. | ||
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| Dietary intake of adolescent and adult Lifelines participants was assessed with a food frequency questionnaire (FFQ) that was specifically developed for Lifelines to assess dietary risk factors for a considerable number of diseases. | Dietary intake of adolescent and adult Lifelines participants was assessed with a food frequency questionnaire (FFQ) that was specifically developed for Lifelines to assess dietary risk factors for a considerable number of diseases. | ||
| Since this resulted in a long and time-consuming questionnaire, the questionnaire was divided into four parts and called the **Flower Food Frequency Questionnaire**.\\ | Since this resulted in a long and time-consuming questionnaire, the questionnaire was divided into four parts and called the **Flower Food Frequency Questionnaire**.\\ | ||
| - | The questionnaire consists of one basic questionnaire, assessed at [[1A|baseline]]: **the heart** of the flower. It covers energy and macronutrient intake and takes ~30 minutes to complete. The raw data from the heart FFQ were used to calculate [[FFQ sum scores|nutritional sum scores]].\\\\ | + | For more information about the rationale for and validation of the flower FFQ see {{ :flower_ffq_nutrients.pdf |Brouwer-Brolsma et al. (2017)}} and {{ :brouwer-brolsma_2021.pdf |Brouwer-Brolsma et al. (2021)}}.\\ |
| - | The other three shorter questionnaires, **the petals**, were only used in adults and cover the (micro)nutrients: | + | |
| - | * FFQ1 (Petal 1) contains 59 food items and is used to estimate the intake of different types of fatty acids and caffeine | + | The questionnaire consists of one basic questionnaire, assessed at [[1A|baseline]]: **the heart** of the flower. It covers energy and macronutrient intake and takes ~30 minutes to complete. The raw data from the heart FFQ were used to calculate [[FFQ sum scores|macronutrient sum scores]].\\ |
| - | * FFQ2 (Petal 2) consists of 61 food items and is used to estimate the intake of vitamin B2, B6, B11, 12, calcium and soy. | + | The other three shorter questionnaires, **the petals**, were only used in adults and cover the (micro)nutrients (See Figure 1): |
| - | * FFQ3 (Petal 3) consists of 64 food items and is used to estimate the intake of vitamin A, C, E, and dietary fiber. See Figure 1. | + | |
| + | * FFQ1 (Petal 1) consists of 61 food items and is used to estimate the intake of vitamin B2, B6, B11, 12, calcium and soy. | ||
| + | * FFQ2 (Petal 2) contains 59 food items and is used to estimate the intake of different types of fatty acids and caffeine | ||
| + | * FFQ3 (Petal 3) consists of 64 food items and is used to estimate the intake of vitamin A, C, E, and dietary fiber. | ||
| The Flower FFQ covers ≥96% of the absolute nutriënt intake and ≥93% of the between-person variability of each nutriënt as assessed in the Dutch National Food Consumption Survey from 1998. | The Flower FFQ covers ≥96% of the absolute nutriënt intake and ≥93% of the between-person variability of each nutriënt as assessed in the Dutch National Food Consumption Survey from 1998. | ||
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| NB: The three FFQ petals were randomly distributed to adult participants during the follow-up questionnaires [[1B]], [[1C]] and [[2A Questionnaire 1]], so that each participant received the petals in one of six possible orders ([1-2-3], [1-3-2], [2-1-3], [2-3-1], [3-1-2], or [3-2-1]). | NB: The three FFQ petals were randomly distributed to adult participants during the follow-up questionnaires [[1B]], [[1C]] and [[2A Questionnaire 1]], so that each participant received the petals in one of six possible orders ([1-2-3], [1-3-2], [2-1-3], [2-3-1], [3-1-2], or [3-2-1]). | ||
| - | {{:ffq_flower.png|}} | + | {{:ffq_corrected.png|}} |
| - | For more information about the rationale for the flower FFQ see {{ :flower_ffq_nutrients.pdf |Brouwer-Brolsma et al. (2017)}} | ||
| ===== Papers using Lifelines FFQ data ===== | ===== Papers using Lifelines FFQ data ===== | ||
ffq.1598958493.txt.gz · Last modified: 2020/09/01 13:08 by trynke
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