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Table 1 Participant demographics by sports- and non-sports-related concussions, sex, and age, from pre- to post-law period, 2008–2016

From: Sports and non-sports-related concussions among Medicaid-insured children: health care utilization before and after Ohio’s concussion law

  Pre-law Post-law Overall  
n (%) n (%) n (%) P-Valueb
Total 2742 (44.5) 3415 (55.5) 6157 (100)  
Sexa        0.982
 Male 1751 (64.1) 2187 (64.0) 3938 (64.0)  
 Female 982 (35.9) 1228 (36.0) 2210 (36.0)  
Age at first visit        < 0.0001
  < 5 546 (19.9) 421 (12.3) 967 (15.7)  
 5–9 484 (17.7) 630 (18.5) 1114 (18.1)  
 10–14 879 (32.1) 1274 (37.3) 2153 (35.0)  
 15–18 833 (30.3) 1090 (31.9) 1923 (31.2)  
Sports-Related 726 (39.9) 1095 (60.1) 1821 (29.6)  
Sex        0.172
 Male 583 (80.3) 850 (77.6) 1433 (78.7)  
 Female 143 (19.7) 245 (22.4) 388 (21.3)  
Age at first visit        0.012
  < 5 24 (3.3) 13 (1.2) 37 (2.0)  
 5–9 97 (13.4) 156 (14.2) 253 (13.9)  
 10–14 359 (49.4) 573 (52.3) 932 (51.2)  
 15–18 246 (33.9) 353 (32.2) 599 (32.9)  
Non-Sports-Related 2016 (46.5) 2320 (53.5) 4336 (70.4)  
Sexa        0.706
 Male 1168 (58.2) 1.337 (57.6) 2505 (57.9)  
 Female 839 (41.8) 983 (42.4) 1822 (42.1)  
Age at first visit        < 0.0001
  < 5 522 (25.9) 408 (17.6) 930 (21.4)  
 5–9 387 (19.2) 474 (20.4) 861 (19.9)  
 10–14 520 (25.8) 701 (30.2) 1221 (28.2)  
 15–18 587 (29.1) 737 (31.8) 1324 (30.5)  
  1. a There are 9 injuries with missing sex
  2. bP-values based on chi-square tests of the distribution of sex and age across the law period
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