Table 3

 Unadjusted associations between patients’ characteristics and organised sports

Organised sports (n = 152)Other activities (n = 440)Significance
Values in parentheses are percentages.
Age group
    ⩾10133 (87.5)219 (49.8)χ21  =  66.71, p<0.0001
    <1019 (12.5)221 (50.2)
Sex
    M134 (88.2)290 (65.9)χ21  =  27.51, p<0.0001
    F18 (11.8)150 (34.1)
Mechanism
    Contact131 (86.2)139 (31.6)χ21  =  135.73, p<0.0001
    Fall21 (13.8)301 (68.4)
Place of injury
    Home2 (1.3)147 (33.4)χ22  =  80.15, p<0.0001
    School24 (15.8)99 (22.5)
    Others126 (82.9)194 (44.1)
Concussion severity
    Severe9 (6.0)10 (2.3)χ22  =  22.38, p<0.0001
    Moderate56 (37.0)92 (21.0)
    Mild86 (57.0)336 (76.7)
Multiple injury
    Yes39 (25.7)72 (16.4)χ21  =  6.41, p  =  0.01
    No113 (74.3)368 (83.6)
Imaging
    Yes45 (29.6)89 (20.3)χ21  =  5.61, p  =  0.02
    No107 (70.4)350 (79.7)
Vital sign
    Yes137 (91.9)395 (90.0)χ21  =  0.51, p  =  0.48
    No12 (8.9)44 (10.0)
Assess cognitive dysfunction
    Yes50 (32.9)258 (58.9)χ21  =  30.59, p<0.0001
    No102 (67.1)180 (41.1)
Admission to hospital
    Yes59 (38.8)84 (19.1)χ21  =  23.99, p<0.0001
    No93 (61.2)356 (80.9)
Re-presentation
    Yes1 (0.7)10 (2.3)χ21  =  1.62, p  =  0.20
    No152 (99.3)429 (97.7)
Instruction
    Yes148 (97.4)423 (96.4)χ21  =  0.35, p  =  0.55
    No4 (2.6)16 (3.6)
Education
    Yes119 (79.3)283 (65.1)χ21  =  10.58, p  =  0.001
    No31 (20.7)152 (34.9)
Return to activity instruction
    Yes37 (24.7)180 (42.9)χ21  =  15.51, p<0.0001
    No113 (75.3)240 (57.1)