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. 2022 Jan 6;48(3):631–642. doi: 10.1093/schbul/sbab145

Table 1.

Baseline Sociodemographic and Clinical Characteristics of Cohort Members Assessed at Follow-up (n = 243) and Those not Assessed (n = 267)

Assessed Not Assessed X  2 or t(df) P
Gender, female, n (%) 106 (43.6) 100 (37.5) 2.010(1) 0.156
Age, y 27.5 (9.83) 31.8 (12.6) 4.197(508) <.001
Socioeconomic status score (1–5) 3.07 (0.72) 3.16 (0.67) 1.475(508) .141
Married/cohabiting at illness onset, n (%) 73 (30.0) 94 (35.2) 1.541(1) .214
Education, years 11.2 (3.37) 10.6 (3.43) 1.865(508) .063
Premorbid adjustment total score 5.32 (4.23) 5.61 (3.78) 0.837(508) .403
DUP, months 15.3 (35.2) 20.2 (44.5) 1.388(498.8) .166
Drug use before admission, n (%) 81 (33.3) 100 (37.5) 0.943(1) .331
Type of onset (1 = acute, 4 = chronic) 2.59 (1.23) 2.72 (1.19) 1.21(508) .226
Compulsory admission, n (%) 76 (31.3) 87 (32.6) 0.100(1) .752
Antipsychotic drug-naïve status, n (%) 194 (79.8) 199 (74.5) 2.024(1) .155
Diagnosis, n (%)
 Schizophrenia 72 (29.6) 89 (33.3) 2.262(7) .944
 Schizophreniform disorder 40 (16.5) 39 (14.6)
 Brief psychotic disorder 41 (16.9) 40 (15.0)
 Delusional disorder 16 (6.6) 23 (8.6)
 Schizoaffective disorder 13 (5.3) 12 (4.5)
 Mania/bipolar disorder 20 (8.2) 23 (8.6)
 Major depressive disorder 29 (11.9) 30 (11.2)
 Psychotic disorder NOS 12 (4.9) 11 (4.1)
Length of index admission, weeks 3.00 (1.78) 3.13 (2.02) 0.771(508) .441
SAPS, global ratings total score 9.57 (4.09) 8.97 (4.07) 1.662(508) .097
SANS, global ratings total score 4.96 (5.23) 5.49 (5.35) 1.115(508) .265
CGI, Efficacy Index 1.56 (0.77) 1.66 (0.91) 1.434(505.7) .152

Note: DUP, duration of untreated psychosis; NOS, not otherwise specified; SAPS, scale for the assessment of positive symptoms; SANS, scale for the assessment of negative symptoms; CGI, clinical global impression.