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Table 1 Distribution of social–demographic factors and clinical characteristics

From: Clinical characteristics and sociodemographic features of psychotic major depression

  NMD
n (%)
PMD
n (%)
SZ
n (%)
Marital status
 Unmarried 93 (27) 33 (33.7) 474 (49.4)*
 Married 222 (64.5) 58 (59.2) 368 (38.4)
 Widowed 13 (3.8) 2 (2.0) 17 (1.8)
 Divorced 16 (4.7) 5 (5.1) 100 (10.4)
Family history
 Yes 74 (21.3)* 31 (31.6) 261 (27.3)
Sex
 Male 153 (43.6) 44 (44.9) 516 (53.4)
Allergy history
 Yes 37 (10.5) 16 (16.3) 78 (8.1)*
Educational attainment
 Primary school or below 136 (40.4)* 18 (18.4) 458 (49.5)*
 Junior middle or vocational school 93 (27.6) 32 (32.7) 236 (25.5)
 Senior high or junior college 66 (19.6) 34 (34.7) 144 (15.6)
 University and above 42 (12.5) 14 (14.3) 88 (9.5)
Trigger events
 Yes 188 (53.9) 48 (49.0) 289 (29.9)*
Ethnicity
 Han 341 (98) 94 (97.9) 932 (97.8)
 Minority 7 (2) 2 (2.1) 21 (2.2)
Season of conception
 Spring 84 (24.0) 27 (27.6) 241 (24.9)
 Summer 90 (25.7) 25 (25.5) 278 (28.7)
 Autumn 86 (24.6) 16 (16.3) 209 (21.6)
 Winter 90 (25.7) 30 (30.6) 239 (24.1)
Onset age
 Median (IQR) 36 (22–52) 34 (21–49) 24 (19–31)*
  1. IQR interquartile range, PMD psychotic major depression, NMD non-psychotic major depression, SZ schizophrenia
  2. *P < 0.05 compared with PMD patients