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Table 2 Influence of comorbid diagnoses of deliberate self-harm and psychiatric disorder at the index poisoning

From: Injuries prior and subsequent to index poisoning with medication among adolescents: a national study based on Norwegian patient registry

Subject Group Deliberate Self-harm at Index Poisoning Psychiatric Disorders at Index Poisoning
Yes
n (%)
No
n (%)
ORa (95% CI) Yes
n (%)
No
n (%)
OR (95% CI)
All Subjects: (N = 1497) 668 829   508 989  
Gender
 Female 548 (82.0) 596 (71.9) 1.8 (1.4–2.3) 387 (76.2) 757 (76.5) NS
 Male 120 (18.0) 233 (29.1)   121 (23.8) 232 (23.5)  
Any type of injury or poisoning (S00-T65) (Yes)
 Before the index poisoning 203 (30.4) 228 (27.5) NS 170 (33.5) 261 (26.4) 1.4 (1.1–1.8)
 After the index poisoning 271 (40.6) 315 (38.0) NS 219 (43.1) 367 (37.1) 1.3 (1.0–1.6)
Injuries to the wrist and hand (S60-S69) (Yes)
 Before the index poisoning 61 (9.1) 72 (8.7) NS 60 (11.8) 73 (7.4) 1.7 (1.2–2.4)
 After the index poisoning 60 (9.0) 79 (9.5) NS 50 (9.8) 89 (9.0) NS
Poisoning by medications or other substances (T4n-T65) (Yes)
 Before the index poisoning 27 (4.0) 46 (5.6) NS 31 (6.1) 42 (4.3) NS
 After the index poisoning 166 (24.9) 163 (19.7) 1.4 (1.1–1.7) 142 (28.0) 187 (18.9) 1.7 (1.3–2.1)
Other injuries (Yes)
 Before the index poisoning 154 (23.1) 163 (19.7) NS 115 (22.6) 202 (20.4) NS
 After the index poisoning 134 (20.1) 191 (23.0) NS 100 (19.7) 225 (22.8) NS
Deliberate self-harm (X6n) (Yes)
 Before the index poisoning 13 (2.0) 9 (1.1) NS 13 (2.6) 9 (0.9) 2.9 (1.2–6.7)
 After the index poisoning 120 (18.0) 64 (7.7) 2.6 (1.9–3.6) 87 (17.1) 97 (9.9) 1.9 (1.4–2.6)
Comorbid psychiatric disorder (F) (Yes)
 Before the index poisoning 11 (1.7) 12 (1.5) NS 12 (24) 11 (1.1) NS
 After the index poisoning 101 (15.1) 88 (10.6) 1.5 (1.1–2.0) 110 (21.7) 79 (8.0) 3.2 (2.3–4.4)
  1. aThe analysis was conducted separately for each specific group of injuries; NS = Not significant