We performed a cross‐sectional study with baseline data from the Pregnant+ study, a randomised controlled trial (RCT) among pregnant women with GDM [24 (link)] (ClinicalTrials.gov/NCT02588729). Data were collected from October 2015 to April
2017 at five diabetic outpatient clinics (DOCs) in the Oslo region of Norway. Participants were recruited consecutively as they came to the DOC. To be included in the study, the women had to have a smartphone, be 18 years or older and be at a gestational age of less than 33 weeks. The women also had to be capable of filling out the questionnaire in Norwegian, Somali or Urdu. Only 14 women filled out the questionnaire in either Urdu or Somali. Participants were excluded from the study if they had a twin pregnancy. In addition, women with celiac disease or lactose intolerance were excluded since they need to follow special diets [24 (link)]. Health professionals at the DOCs identified pregnant women with GDM and checked their eligibility for participation in the study. Of 774 participants assessed for eligibility, 238 participated in the study. All of the women were diagnosed with GDM after performing a two‐hour oral glucose tolerance test (OGTT) ≥ 9 mmol/L. The OGTT consisted of a fasting blood glucose sample followed by drinking a beverage containing 75 g of anhydrous glucose and a second blood glucose sample measured 2 hours later. The definition of GDM was in accordance with the national guidelines for antenatal care and that of the WHO [25 , 26 ].
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