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Table 1 Symptoms categories at baseline and at follow-up among children and adolescents with OCD

From: Exploratory analysis of obsessive compulsive symptom dimensions in children and adolescents: a Prospective follow-up study

Symptom category in the Yale-BOCS Symptoms present at baseline Symptoms present at follow-up (n = 42) Patients whose symptoms changed (n = 42)
  Entire sample (n = 73) Reevaluated sample (n = 42)     
  n (%) mean (SD)a median (IQR)a n (%) mean (SD)a median (IQR)a n (%) mean (SD)a median (IQR)a n (%)
Obsessions           
   Aggressive 35 (47.9) 2.3 (1.6) 2 (2) 21 (50.0) 2.1 (1.3) 2 (2) 14 (33.3) 1.8 (1.4) 1 (1) 17 (40.5)
   Contamination 33 (45.2) 2.6 (1.4) 2 (2) 17 (40.5) 2.1 (1.3) 2 (2) 14 (33.3) 1.4 (0.6) 1 (1) 15 (35.7)
   Sexualb 10 (13.7)    4 (9.5)    5 (11.9)    5 (11.9)
   Hoardingb 15 (20.5)    9 (21.4)    8 (19.0)    11 (26.2)
   Religious 34 (46.6) 1.3 (0.5) 1 (1) 20 (47.6) 1.2 (0.4) 1 (0) 11 (26.2) 1.2 (0.4) 1 (0) 19 (45.2)c
   Symmetry 28 (38.4) 1.7 (0.9)   17 (40.5) 1.7 (0.9) 1 (2) 13 (31.0) 1.7 (1.0) 1 (2) 12 (28.6)
   Somatic 34 (46.6) 1.3 (0.5) 1 (1) 22 (52.3) 1.3 (0.5) 1 (1) 14 (33.3) 1.2 (0.4) 1 (0) 14 (33.3)c
Compulsions           
   Cleaning 31 (42.5) 1.6 (0.8) 1 (1) 16 (38.1) 1.7 (0.8) 1 (1) 11 (26.2) 1.6 (0.5) 1 (1) 11 (26.2)
   Checking 36 (49.3) 1.9 (1.0) 2 (1) 18 (42.9) 1.8 (0.9) 2 (1) 13 (31.0) 1.8 (1.3) 1 (1) 9 (21.4)
   Repeating 35 (47.9) 1.5 (0.5) 2 (1) 21 (50.0) 0.8 (0.9) 2 (1) 14 (33.3) 1.4 (0.5) 1 (1) 11 (26.2)c
   Countingb 20 (27.4)    12 (28.6)    11 (26.2)    13 (31.0)
   Ordering 28 (38.4) 1.7 (0.8) 2 (1) 15 (35.7) 1.7 (0.8) 2 (1) 20 (47.6) 1.6 (0.5) 2 (1) 13 (31.0)
   Hoardingb 12 (16.4)    6 (15.0)    5 (11.9)    7 (16.7)
  1. a Statistics were calculated in subjects reporting the symptom
  2. b These categories contain only one item
  3. c Tendency for a significant change (McNemar's test, df = 1, p = 0.06)
  4. SD: standard deviation; IQR: interquartile range