Skip to main content

Table 1 Characteristics of the sample (N = 99)

From: Effectiveness of a single-session early psychological intervention for children after road traffic accidents: a randomised controlled trial

  Intervention (N = 49) Control group (N = 50) t* χ2 p
Mean (SD) age at accident, years 11.8 (2.6) 11.3 (2.8) 0.77   .44
Sex      
Boys (%) 29 (59.2) 29 (58.0)    
Girls (%) 20 (40.8) 21 (42.0)   0.01 .91
Socio-economic status      
Lower (%) 6 (12.2) 4 (8.0)    
Middle (%) 16 (32.7) 19 (38.0)    
Upper (%) 24 (49.0) 22 (44.0)    
Unknown (%) 3 (6.1) 5 (10.0)   0.09 .77
Mean (SD) number of preceding life events 1.3 (1.6) 1.1 (1.4) 0.64   .53
Mean (SD) number of life events that followed 1.1 (1.5) 1.1 (1.8) -0.15   .88
Type of accident      
Pedestrian (%) 16 (32.7) 18 (36.0)    
Car passenger (%) 8 (16.3) 7 (14.0)    
Bicycle/motorcycle (%) 17 (34.7) 17 (34.0)    
Other (%) 8 (16.3) 8 (16.0)   0.07 .79
Mean (SD) score on the Modified Injury Severity Scale 6.1 (4.6) 5.8 (5.3) 0.26   .80
Medical treatment      
Inpatient (%) 31 (63.3) 30 (60.0)    
Outpatient (%) 18 (36.7) 20 (40.0)   0.11 .74
  1. *Independent two-sample t-test. †χ2 analysis