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Fig. 1 | BMC Psychiatry

Fig. 1

From: Cognitive impairment as a predictor of long-term psychological distress in patients with polysubstance use disorders: a prospective longitudinal cohort study

Fig. 1

Participant inclusion, exclusion and missing data flow at baseline, 1-year, and 5-year follow-up measurements. Discrepancies between (i) excluded participants and (ii) the number of analysed protocols at baseline and follow-ups result from overlap between excluded protocols at baseline and study dropout or missing data at follow up. Specifically, a) 17 BRIEF-A protocols were excluded at the 1-year follow-up measurement, and b) 55 WASI and c) 51 BRIEF-A protocols were excluded at the 5-year follow-up measurement. MoCA®, Montreal Cognitive Assessment®; WASI, Wechsler Abbreviated Scale of Intelligence; BRIEF-A, Behaviour Rating Inventory of Executive Function – Adult version

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