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--- ffq_sum_scores [2021/11/25 10:43] – trynke
+++ ffq_sum_scores [2025/02/05 13:49] (current) – external edit 127.0.0.1
@@ Line 2: / Line 2: @@
 Researchers from [[https://www.wur.nl/en/Persons/Corine-CWM-Corine-Perenboom.htm|Wageningen University & Research (WUR)]] developed sum scores for the [[ffq|Food Frequency Questionnaire (FFQ)]] from adult participants. The FFQ consists of one basic questionnaire covering the macronutrient intake (heart of the flower) which has been assessed at [[1A]] and three shorter questionnaires (the petals) covering (micro)nutrients assessed at [[1B]], [[1C]], and [[2A]]. ([[sections]]: [[nutrition]] ([[ffq|Flower FFQ]]) and [[secondary & linked variables]]))\\
+Using the FFQ Sum scores from [[1A]], an [[upf_categorization|ultra-processed food categorization]] has been generated and is available for use as well.
-The FFQ sum scores can be requested 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 following paper: \\
+The FFQ sum scores 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 following paper: \\
   * [[https://doi.org/10.1017/S0007114511000067|Siebelink, E., Geelen, A., & de Vries, J. H. (2011). Self-reported energy intake by FFQ compared with actual energy intake to maintain body weight in 516 adults. British journal of nutrition, 106(2), 274-281.]]
+Optional paper for complete FFQ questionnaire:
+  * [[https://doi.org/10.3390/nu14010048|Baart, A. M., Brouwer-Brolsma, E. M., Perenboom, C. W., de Vries, J. H., & Feskens, E. J. (2022). Dietary Intake in the Lifelines Cohort Study: Baseline Results from the Flower Food Frequency Questionnaire among 59,982 Participants. Nutrients, 14(1), 48.]]
 \\
@@ Line 54: / Line 58: @@
 ===== Variables =====
 Below the total intake per person per day for different energy/macronutrient/micronutrient variables are listed.
-| **Questions English**                                                          | **Questions Dutch**                                                                              | **Code**                      | **Variable**       | **Assessment**  | **Age**  |
+| **Label English**                                                              | **Label Dutch**                                                                                  | **Code**                      | **Variable**       | **Assessment**  | **Age**  |
 | total added sugar delivered by all food items in g/day (ffq heart)             | totaal aan sucrose geleverd door alle voedingsitems in g/dag (ffq hart)                          | addedsugar_intake_adu_c_1     | sumofadd_sug       | sec *           | 18+      |
 | total alcohol intake in g/day (ffq heart)                                      | totale inname van alcohol in g/dag (ffq hart)                                                    | alcohol_intake_adu_c_1        | sumofalcohol       | sec *           | 18+      |
@@ Line 102: / Line 106: @@
 | total vitamin c intake in mg/day (ffq heart + petals)                          | totale inname van vitamine c in mg/dag (ffq hart + bloemblaadjes)                                | vitc_intake_adu_c_1           | vitc               | sec *           | 18+      |
 | total vitamin e intake in mg/day (ffq heart + petals)                          | totale inname van vitamine e in mg/dag (ffq hart + bloemblaadjes)                                | vite_intake_adu_c_1           | vite               | sec *           | 18+      |
+| total haem iron intake in mg/day (ffq heart + petals)                          | totale inname van heemijzer in mg/dag (ffq hart + bloemblaadjes)                                 | ironhaem_intake_adu_c_1       | ijzerhaem          | sec *           | 18+      |
+| total non-haem iron intake in mg/day (ffq heart + petals)                      | totale inname van non-heemijzer in mg/dag (ffq hart + bloemblaadjes)                             | ironnonhaem_intake_adu_c_1    | ijzernonhaem       | sec *           | 18+      |
+| total iron intake in mg/day (ffq heart + petals)                               | totale inname van ijzer in mg/dag (ffq hart + bloemblaadjes)                                     | irontot_intake_adu_c_1        | ijzertot           | sec *           | 18+      |
 * All FFQ sum scores included as assessment 'sec' as the sum scores include several assessments.