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ffq [2020/11/13 13:42]
trynke
ffq [2022/01/05 10:44] (current)
laura [Papers using Lifelines FFQ data]
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 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]]).\\ 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 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 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.1605271371.txt.gz · Last modified: 2020/11/13 13:42 by trynke