Web-based food frequency questionnaire
Collecting food record data and converting written data into electronic database is time consuming and expensive. Therefore we have created internet based and automatically calculating food frequency questionnaire (FFQ) to collect nutritional data in large study populations.
Our FFQ is web-based and automated. It is also possible to send FFQ by post when studying older populations. Trained study nurses collect and save data returning by post and check FFQ’s returning via internet. The FFQ comprises a food list of 157 food items with 9 frequency response options ranging from 'Never' to '6 or more times per day'. The output is provided more than 60 nutrients and 100 food groups. FFQ includes also specific questions about supplement use. In KuBiCo Study FFQ has been further developed to produce personal feedback about nutrition at the first and third trimester of pregnancy.
In addition to our own studies (FIND, VitDmet, Terla and KuBiCo) FFQ is also used in some other studies. Most notables of these are:
1) Intestinal and Nasal Microbiota of Patients with Idiopathic Parkinson's Disease, NCT01536769, Helsinki University Hospital, n=200, 2012-17 (PI Adjunct Professor Filip Scheperjens).
2) Neurodegeneration in Multiple Sclerosis (Neuro-MS), Kuopio University Hospital, 2015-17, n= 400-500, 2015-17 (PI Professor Anne Remes).
3) Microbiome, Narcolepsy, and ADHD, University of Turku, n=225, 2015-17 (PI Professor Markku Partinen).
4) Follow-up Study with Randomized Clinical Vitamin D Supplementation Trial on Patients with Depression (DepFuD), Kuopio Univeristy Hospital, n=3000, 2015-2020 (PI Professor Heimo Viinamäki).
5) Non-Motor Symptoms and Brain Dopamine Transporter Binding (NMDAT), University Hospital of Turku, n=2100, 2014-2023 (PI Adjunct Professor Valtteri Kaasinen).