An online questionnaire was used, consisting of questions developed by the study researchers, and belonging to the DSM-5 Level 1 Cross-sectional Symptom Scale [24 ]. The questionnaire contained 14 multiple-choice questions and a simple subjective question, referring to the age of the participants. The first two questions referred to accepting to participate in the research and being an adult with DM1; the other questions in the questionnaire were divided into three axes, namely:

Sociodemographic: questions related to age, gender and region of Brazil in which they resided;

Mental health: the DSM-5 Level 1 Cross-sectional Symptom Scale [24 ] was used, adapted to assess only questions from the psychiatric domains related to anxiety, anger, depression, sleep disorders and substance use (considering only the medication use). In the question regarding the use of medications, the use of any of the following medications on their own was considered; that is, without a medical prescription, in larger amounts or for a longer period than prescribed (e.g., analgesics (such as paracetamol, codeine), high-stimulants (such as methylphenidate or amphetamines), sedatives or tranquilizers (such as sleeping pills or diazepam) or drugs such as marijuana, cocaine or crack, synthetic drugs (such as ecstasy), hallucinogens (such as LSD), heroin, inhalants or solvents (such as cola) or methamphetamine (or other stimulants)). The scale score ranged from zero to four, with zero corresponding to mild and four corresponding to severe;

Physical activity: questions regarding the practice of physical activity assessed the occurrence of physical activity before and during social isolation.

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