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Table 2 Association between obstetric complications and first-episode psychosis

From: The impact of peri-natal stress on psychosis risk: results from the Bo-FEP incidence study

Health status of the mothersCasesControls
n (%)42 (100.0)26 (100.0)
 First child29 (69.0)15 (57.7)
 Second child8 (19.0)8 (30.8)
 Third or further child5 (11.9)3 (11.5)
Mean age of the parents at cases’ births (SD)
 Mothers’ age26.88 (5.4)28.46 (5.3)
 Fathers’ age31.08 (6.06)31.81 (5.7)
Mean age of the mothers at the interview (SD)58.57 (9.5)58.96 (5.4)
Maternal disorders history, n (%)42 (100.0)26 (100.0)
 Negative***20 (46.6)24 (92.3)
 Positive***22 (52.4)2 (7.7)
 Endocrine-Metabolic disorders5 (11.9)0 (.0)
 Cardio-vascular disorders4 (9.5)0 (0.0)
 Respiratory disorders2 (4.8)0 (0.0)
 Neurological disorders1 (2.4)0 (0.0)
 Gynaecological disorders *9 (21.4)1 (3.8)
 Other9 (21.4)2 (7.7)
Pathological obstetric history, n (%)42 (100.0)26 (100.0)
 Not applicable29 (69.0)14 (53.8)
 Negative10 (23.8)10 (38.5)
 Positive3 (7.1)2 (7.7)
OCs, n (%)42 (100.0)26 (100.0)
 Present27 (65.9)20 (76.9)
 Absent14(34.1)6 (23.1)
Negatives memories (e.g. trauma), n (%)42 (100.0)26 (100.0)
 No***18 (42.9)24 (92.3)
 Yes***24 (57.1)2 (7.7)
Use of drugs-alcohol-substances in pregnancy
 Not-users24 (57.1)14 (53.8)
 Users18 (42.9)12 (46.2)
Alcohol during pregnancy, n (%)15 (35.7)11 (42.2)
 Monthly or less3 (7.1)1 (3.8)
 2–3 time/month5 (11.9)1 (3.8)
 2–3 times/week5 (11.98 (30.8)
 Every day2 (4.8)1 (3.8)
Smoking during pregnancy, n (%)7 (15.8)3 (11.5)
 6–9 sigarettes/die6 (14.3)2 (7.7)
 10–20 sigarettes/die1 (2.4)1 (3.8)
 Other smokers at home18 (43.9)14 (56.0)
 Other Substances during pregnancy, n (%)0 (0.0)0 (0.0)
Medicinal drugs during pregnancy, n (%)35 (100.0)24 (100.0)
 Yes*12 (34.3)3 (12.5)
 No*23 (65.7)21 (87.5)
 Anti-inflammatory drugs**7 (20.6)0 (0.0)
  1. *p < 0.1 e > 0.05; **p < 0.05 e > 0.001; ***p < o = 0.001
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