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. 2022 Jan 22;40:256–266. doi: 10.1016/j.bodyim.2022.01.002

Table 2.

Eating disorder symptom occurrence.

Any occurrence (n, %) Regular occurrence (n, %) Mean (SD) Range
# Days Dietary Restriction 25, 80.65% 15, 48.39% 2.81 (2.40) 0–28 days
# Days Fasting 8 + Hours 11, 35.48% 3, 16.13% 1.13 (1.91) 0–28 days
# Episodes Hard Exercise 10, 32.26% 3, 9.68% 4.10 (8.43) 0–28
# Episodes Laxative Misuse 5, 16.13% 2, 6.45% 0.65 (1.89) 0–9
# Episodes Objective Binge 14, 45.16% 9, 29.03% 2.29 (3.40) 0–13
# Episodes Self-Induced Vomiting 1, 3.23% 0, 0% 0.16 (0.90) 0–5

Note. # Days = Number of days in the past 28 when the person experienced each symptom (0 = no days; 1 = 1–5 days; 2 = 6–12 days; 3 = 13–15 days; 4 = 16–22 days; 5 = 23–27 days; 6 = every day). # Episodes = Number of episodes in the last 28 days. Per Nagata et al. (2020), we categorized frequencies of reported eating disorder behaviors by Any occurrence (more than zero reported behaviors or days of behaviors). Regular occurrence of dietary fasting was defined periods of time (≥8 h) without eating anything to influence shape or weight for ≥ 13 days over the past 28 days. Regular occurrence of dietary restriction was defined as ≥ 13 days over the past 28 days. Regular occurrence of hard exercise was defined as exercising in a driven or compulsive way as a means of controlling weight, shape or amount of fat, or burning off calories for ≥ 20 episodes over the past 28 days. For other behaviors, regular occurrence was defined as ≥ 4 occurrences over the past 28 days.