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upf_categorization [2022/10/07 16:04] laura [Calculation of UPF categorization] |
upf_categorization [2022/10/31 12:48] laura [Table] |
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Per category three types of variables have been created: | Per category three types of variables have been created: | ||
- | * **Classification variable:** which adds up all items that belong in the specific category | + | * **Classification variable:** which adds up the intake of all food items that belong to the specific category |
- | * **Weighed percentage variable:** which indicates how much of the total intake belongs to the specific category | + | * **Weight percentage variable:** which indicates how much of the total food intake belongs to the specific category |
- | * **Weighed per 1000kcal variable:** which presents the specific category per 1000 kcal | + | * **Weight per 1000kcal variable:** which presents the specific category per 1000 kcal |
=== Remarks from the UMCG researchers === | === Remarks from the UMCG researchers === | ||
- The current categorization doesn't specifically handle the Betrouwbaarheid of energy intake (provided in the [[ffq_sum_scores|Food Frequency Questionnaire Sum scores]]). This could be a decision for other researchers using the UPF classification data. | - The current categorization doesn't specifically handle the Betrouwbaarheid of energy intake (provided in the [[ffq_sum_scores|Food Frequency Questionnaire Sum scores]]). This could be a decision for other researchers using the UPF classification data. | ||
- According to the NOVA classification, some alcohol products should also be characterized as ultra-processed food. However, we did not do this because alcohol may have separate health effects. Therefore, we analyze alcohol intake always as a separate covariate. This is also practiced by other papers from other cohorts. | - According to the NOVA classification, some alcohol products should also be characterized as ultra-processed food. However, we did not do this because alcohol may have separate health effects. Therefore, we analyze alcohol intake always as a separate covariate. This is also practiced by other papers from other cohorts. | ||
- | - Additional calculations can be made. However, since there is no "golden standard" the researchers leave this up to the interpretation of users. Examples of additional calculations: high sugar content-ultra-processed food, Glycemic Index food, and quartiles/quintiles. | + | |
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===== Variables ===== | ===== Variables ===== | ||
- | | **Questions English** | **Questions Dutch** | **Code** | **Variable** | **Assessment** | **Age** | | + | | **Questions English** | **Questions Dutch** | **Code** | **Variable** | **Assessment** | **Age** | |
- | | NOVA classification 1: unprocessed or minimally processed food | NOVA classificatie 1: onbewerkte of minimaal bewerkte voeding | nova_classification_adu_c_1 | nova1 | [[1a_questionnaire_2|1A]] | 18+ | | + | | food intake (gram per day) / NOVA classification 1: unprocessed or minimally processed food | voedselinname (gram per dag) / NOVA classificatie 1: onbewerkte of minimaal bewerkte voeding | nova_foodintake_adu_c_1 | nova1 | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA classification 2: processed culinary ingredient | NOVA classificatie 2: bewerkt culinair ingrediënt | nova_classification_adu_c_2 | nova2 | [[1a_questionnaire_2|1A]] | 18+ | | + | | food intake (gram per day) / NOVA classification 2: processed culinary ingredient | voedselinname (gram per dag) / NOVA classificatie 2: bewerkt culinair ingrediënt | nova_foodintake_adu_c_2 | nova2 | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA classification 3: processed food | NOVA classificatie 3: bewerkt voedsel | nova_classification_adu_c_3 | nova3 | [[1a_questionnaire_2|1A]] | 18+ | | + | | food intake (gram per day) / NOVA classification 3: processed food | voedselinname (gram per dag) / NOVA classificatie 3: bewerkt voedsel | nova_foodintake_adu_c_3 | nova3 | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA classification 4: ultra-processed food | NOVA classificatie 4: ultabewerkt voedsel | nova_classification_adu_c_4 | nova4 | [[1a_questionnaire_2|1A]] | 18+ | | + | | food intake (gram per day) / NOVA classification 4: ultra-processed food | voedselinname (gram per dag) / NOVA classificatie 4: ultabewerkt voedsel | nova_foodintake_adu_c_4 | nova4 | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA1 Weight Percentage Unprocessed and Minimally Processed Food | NOVA1 gewogen percentage onbewerkte of minimaal bewerkte voeding | nova_weightpercentage_adu_c_1 | nova1prt | [[1a_questionnaire_2|1A]] | 18+ | | + | | % of the total food intake in gram per day / NOVA classification 1: unprocessed or minimally processed food | % van de totale voedselinname in gram per dag / NOVA classificatie 1: onbewerkte of minimaal bewerkte voeding | nova_weightratio_adu_c_1 | nova1prt | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA2 Weight Percentage Processed Culinary Ingredients | NOVA2 gewogen percentage bewerkt culinair ingrediënt | nova_weightpercentage_adu_c_2 | nova2prt | [[1a_questionnaire_2|1A]] | 18+ | | + | | % of the total food intake in gram per day / NOVA classification 2: processed culinary ingredient | % van de totale voedselinname in gram per dag / NOVA classificatie 2: bewerkt culinair ingrediënt | nova_weightratio_adu_c_2 | nova2prt | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA3 Weight Percentage Processed Food | NOVA3 gewogen percentage bewerkt voedsel | nova_weightpercentage_adu_c_3 | nova3prt | [[1a_questionnaire_2|1A]] | 18+ | | + | | % of the total food intake in gram per day / NOVA classification 3: processed food | % van de totale voedselinname in gram per dag / NOVA classificatie 3: bewerkt voedsel | nova_weightratio_adu_c_3 | nova3prt | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA4 Weight Percentage Ultra-processed Food | NOVA4 gewogen percentage ultrabewerkt voedsel | nova_weightpercentage_adu_c_4 | nova4prt | [[1a_questionnaire_2|1A]] | 18+ | | + | | % of the total food intake in gram per day / NOVA classification 4: ultra-processed food | % van de totale voedselinname in gram per dag / NOVA classificatie 4: ultabewerkt voedsel | nova_weightratio_adu_c_4 | nova4prt | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA1 Unprocessed and Minimally Processed Food grams/1000kcal | NOVA1 onbewerkte of minimaal bewerkte voeding gram/1000kcal | nova_weightperkcal_adu_c_1 | nova1kcal | [[1a_questionnaire_2|1A]] | 18+ | | + | | gram per 1000kcal of the total food intake per day / NOVA classification 1: unprocessed or minimally processed food | gram per 1000kcal of de totale voedsellinname per dag / NOVA classificatie 1: onbewerkte of minimaal bewerkte voeding | nova_energyratio_adu_c_1 | nova1kcal | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA2 Processed Culinary Ingredients grams/1000kcal | NOVA2 bewerkt culinair ingrediënt gram/1000kcal | nova_weightperkcal_adu_c_2 | nova2kcal | [[1a_questionnaire_2|1A]] | 18+ | | + | | gram per 1000kcal of the total food intake per day / NOVA classification 2: processed culinary ingredient | gram per 1000kcal of de totale voedsellinname per dag / NOVA classificatie 2: bewerkt culinair ingrediënt | nova_energyratio_adu_c_2 | nova2kcal | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA3 Processed food grams/1000kcal | NOVA3 bewerkt voedsel gram/1000kcal | nova_weightperkcal_adu_c_3 | nova3kcal | [[1a_questionnaire_2|1A]] | 18+ | | + | | gram per 1000kcal of the total food intake per day / NOVA classification 3: processed food | gram per 1000kcal of de totale voedsellinname per dag / NOVA classificatie 3: bewerkt voedsel | nova_energyratio_adu_c_3 | nova3kcal | [[1a_questionnaire_2|1A]] | 18+ | |
- | | NOVA4 Ultra-processed Food grams/1000kcal | NOVA4 ultrabewerkt voedsel gram/1000kcal | nova_weightperkcal_adu_c_4 | nova4kcal | [[1a_questionnaire_2|1A]] | 18+ | | + | | gram per 1000kcal of the total food intake per day / NOVA classification 4: ultra-processed food | gram per 1000kcal of de totale voedsellinname per dag / NOVA classificatie 4: ultabewerkt voedsel | nova_energyratio_adu_c_4 | nova4kcal | [[1a_questionnaire_2|1A]] | 18+ | |