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. 2023 Aug 21;26(11):796–807. doi: 10.1093/ijnp/pyad051

Table 1.

Demographic and Clinical Characteristics of the Participants

Characteristic Patients baseline (n = 120) Patients follow-up (n = 75)
Age, y (mean ± SD) 23.9 ± 5.8 25.08 ± 6
Sex, n (%)
 Male 82 (68.3) 51 (68)
 Female 38 (31.7) 24 (32)
Ethnic group, n (%)
 Caucasian 113 (94.2) 69 (92)
 Hispanic 3 (2.5) 2 (2.7)
 Others 4 (3.3) 4 (5.3)
Body mass index (mean ± SD) 24.89 ± 4.04 24.63 ± 5.1
Psychiatric history
 DUP (mean ± SD) 96.95 ± 113.79
 Diagnosis, n (%)*
 Affective psychosis 22 (18.3) 24 (32.4)
 Nonaffective psychosis 98 (81.7) 50 (67.6)
Antipsychotic medication, n (%)
 Risperidone 43 (35.8) 15 (20.5)
 Aripiprazole 12 (10.0) 15 (20.5)
 Olanzapine 15 (12.5) 5 (6.8)
 Quetiapine 7 (5.8) 5 (6.8)
 Clozapine 8 (6.7) 5 (6.8)
 Ziprasidone 2 (1.7) 2 (2.7)
 Paliperidone 10 (8.3) 5 (6.8)
 None 23 (19.2) 21 (28.8)
DDD of CPZ eq., (mg) (mean ± SD) 49.62 ± 127.88 39.84 ± 87.85

Abbreviations: DDD of CPZ eq., Defined daily dose of chlorpromazine equivalent; DUP, days of untreated psychosis. Comparison between FEP patients at baseline and the follow-up assessed with a t test (age, body mass index) a chi-squared test (gender, diagnosis, medication), the likelihood ratio (ethnic group) and a Mann Whitney U-test (DDD of CPZ eq.). *P = .025.