upf_categorization
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upf_categorization [2022/10/07 16:19] laura [Calculation of UPF categorization] |
upf_categorization [2023/02/01 16:21] (current) flip [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 the intake of all food items that belong to the specific category | * **Classification variable:** which adds up the intake of all food items that belong to the specific category | ||
| - | * **Weight percentage variable:** which indicates how much of the total food intake belongs to the specific category | + | * **Intake (nova) weight ratio variable:** which indicates the weight proportion (% grams) of a specific category in the total diet of a day |
| - | * **Weight per 1000kcal variable:** which presents the specific category per 1000 kcal | + | * **Intake (nova) energy ratio variable:** which which indicates the energy ratio (grams/1000kcal) of a specific category in the total diet of a day |
| === 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 reliability 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. To make this easier, the reliability variable from the [[ffq_sum_scores|FFQ sum scores]] has been added as variable. |
| - 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** | | + | | **Label English** | **Label Dutch** | **Code** | **Variable** | **Assessment** | **Age** | |
| - | | 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+ | | + | | 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 | sec * | 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+ | | + | | 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 | sec * | 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+ | | + | | 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 | sec * | 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+ | | + | | 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 | sec * | 18+ | |
| - | | percentage of total food intake / NOVA classification 1: unprocessed or minimally processed food | procent van totale voedselinname / NOVA classificatie 1: onbewerkte of minimaal bewerkte voeding | nova_percentage_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 | sec * | 18+ | |
| - | | percentage of total food intake / NOVA classification 2: processed culinary ingredient | procent van totale voedselinname / NOVA classificatie 2: bewerkt culinair ingrediënt | nova_percentage_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 | sec * | 18+ | |
| - | | percentage of total food intake / NOVA classification 3: processed food | procent van totale voedselinname / NOVA classificatie 3: bewerkt voedsel | nova_percentage_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 | sec * | 18+ | |
| - | | percentage of total food intake / NOVA classification 4: ultra-processed food | procent van totale voedselinname / NOVA classificatie 4: ultabewerkt voedsel | nova_percentage_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 | sec * | 18+ | |
| - | | grams/1000kcal / NOVA classification 1: unprocessed or minimally processed food | grams/1000kcal / NOVA classificatie 1: onbewerkte of minimaal bewerkte voeding | 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 | sec * | 18+ | |
| - | | grams/1000kcal / NOVA classification 2: processed culinary ingredient | grams/1000kcal / NOVA classificatie 2: bewerkt culinair ingrediënt | 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 | sec * | 18+ | |
| - | | grams/1000kcal / NOVA classification 3: processed food | grams/1000kcal / NOVA classificatie 3: bewerkt voedsel | 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 | sec * | 18+ | |
| - | | grams/1000kcal / NOVA classification 4: ultra-processed food | grams/1000kcal / NOVA classificatie 4: ultabewerkt voedsel | 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 | sec * | 18+ | |
| + | | reliability of the ffq heart results that were used to determine the nove scores | betrouwbaarheid van de ffq hart resultaten die zijn gebruikt voor het bepalen van de nova scores | nova_reliabilityffq_adu_c_1 | Betrouwbaarheid__nova | sec * | 18+ | | ||
| + | * The UPF categorization according to the NOVA is included as assessment 'sec' because it is based on the FFQ sum scores. | ||
upf_categorization.1665152341.txt.gz · Last modified: 2022/10/07 16:19 by laura
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