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. 2016 Sep 14;2:38. doi: 10.1186/s40798-016-0058-8

Table 2.

Study characteristics of children with sports-related concussion, stratified by ethnicity

Variable Ethnicity
Non-Hispanic/Latino Hispanic/Latino χ 2(df) p
n (%) n (%)
Sex 0.80 (1) 0.37
 Male 814 (61.3) 58 (56.9)
 Female 513 (38.7) 44 (43.1)
Cognitive-related Symptoms 0.69 (1) 0.41
 Yes 1033 (77.8) 83 (81.4)
 No 294 (22.2) 19 (18.6)
Insurance Coverage 14.6 (2) 0.001
 Private 1151 (86.7) 75 (73.5)
 Public 110 (8.3) 19 (18.6)
 Uninsured 66 (5.0) 8 (7.8)
Year Injured 21.3 (7) 0.003
 2007 6 (0.5) 0 (0.0)
 2008 37 (2.8) 1 (1.0)
 2009 149 (11.2) 6 (5.9)
 2010 223 (16.8) 8 (7.8)
 2011 233 (17.6) 14 (13.7)
 2012 197 (14.8) 16 (15.7)
 2013 341 (25.7) 36 (35.3)
 2014 141 (10.6) 21 (20.6)

Notes and abbreviations: The type 1 error tolerance (significance level) was set at 5 % (0.05). n = number, % = percentage, df = degree of freedom, Pearson Chi-squared = χ 2