ffq
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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 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]]. | ||
| ^ Age: ^ 0-1 ^ 4-7 ^ 8-12 ^ 13-17 ^ 18+ ^ | ^ Age: ^ 0-1 ^ 4-7 ^ 8-12 ^ 13-17 ^ 18+ ^ | ||
| | Flower FFQ | | | | x | x | | | Flower FFQ | | | | x | x | | ||
| | [[Children's diet (FFQ-TNO)|TNO FFQ]] | | | x | | | | | [[Children's diet (FFQ-TNO)|TNO FFQ]] | | | x | | | | ||
| - | | [[Children's diet (general)|General diet]] | | x | x | x | | | ||
| - | | [[Infant diet (general)|Infant diet]] | x | | | | | | ||
| ===== Background ===== | ===== Background ===== | ||
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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**.\\ | ||
| + | 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)}}.\\ | ||
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| 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]].\\ | 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]].\\ | ||
| - | The other three shorter questionnaires, **the petals**, were only used in adults and cover the (micro)nutrients: | + | The other three shorter questionnaires, **the petals**, were only used in adults and cover the (micro)nutrients (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. | * 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 | * 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. 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. |
| 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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| {{:ffq_corrected.png|}} | {{:ffq_corrected.png|}} | ||
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| - | 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.1615388856.txt.gz · Last modified: 2021/03/10 16:07 by trynke
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