. 2024 Apr 25;14(4):e082237. doi: 10.1136/bmjopen-2023-082237

Table 2.

Measures in the Danish Diabetes Birth Registry-2 for the partners during pregnancy

Timing	Level of participation
	Basic information	Additional information
During pregnancy
Partner	Online study-specific questionnaire sent out directly after inclusion: Ethnicity, country of birth, household composition, level of education, employment status, chronic disease/history of disease, height, current weight, alcohol use, smoking status, reading and/or writing problems, family history of diabetes.	Biological samples at 12 weeks: Genetic risk score, epigenetic markers, small RNAs, inflammatory cytokines, metabolic markers, proteomics, serum and plasma for future biobank. Questionnaire around 12 weeks of pregnancy: Health status (SF-12, V.2),⁶⁸ physical activity (PAS-2),^93–95 eating habits,⁷¹ diet (FFQ), sleep (PSQI),⁷⁴ history of psychopathology and psychotropic medication use (SSQs), history of contact with a psychologist/psychiatrist (SSQs), well-being (WHO-5),^{75 76} depression (EPDS),^{77 78} perceived stress (PSS),^{79 80} loneliness (T-ILS),⁸¹ relationship duration (SSQ), marital satisfaction (SSQ), dyadic coping (DCI),⁸⁵ health literacy (HLSAC).^{86 87} Questionnaire at 26–29 weeks of pregnancy: Health status (SF-12, V.2),⁶⁸ physical activity (PAS-2),^93–95 diet (FFQ), sleep (PSQI),⁷⁴ changes in psychopathology and psychotropic medication use (SSQ), changes in contact with a psychologist/psychiatrist (SSQ), well-being (WHO-5),^{75 76} depression (EPDS),^{77 78} perceived stress (PSS),^{79 80} loneliness (T-ILS),⁸¹ prenatal attachment (PAAS).^{90 91}

DCI, Dyadic Coping Inventory (subscales: Stress communicated by oneself, supportive dyadic coping of the partner, delegated dyadic coping of the partner, negative dyadic coping by partner, common dyadic coping, evaluation of dyadic coping); EPDS, Edinburgh Postnatal Depression Scale; FFQ, Food Frequency Questionnaire; HLCA, Health Literacy for School-Aged Children; PAAS, Paternal Antenatal Attachment Scale; PAS-2, Physical Activity Scale 2; PSQI, Pittsburgh Sleep Quality Index; PSS, Perceived Stress Scale; SF12=12, Item Short-Form (SF-12); SSQ, Study Specific Question; T-ILS, Three Item Loneliness Scale; WHO-5, EHO - Five Well-Being Index.