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Table 2 Characteristics of cases and controls (n = 5401)

From: Alcohol, psychoactive substances and non-fatal road traffic accidents - a case-control study

  Cases% (n = 96) Controls% (n = 5305) Test statistica
Demographics    
Gender    X2 = 0.638
 Male 76 (73) 72 (3839) P = 0.424
 Female 24 (23) 28 (1466)  
Age Groups    X2 = 24.507
 17-24 23 (22) 9 (481) P < 0.001
 25-34 22 (21) 18 (946)  
 35-49 28 (27) 36 (1890)
 > 50 27 (26) 38 (1988)
Sampling Time   
Season    X2 = 21.276
1 Spring (Mar-May) 23 (22) 34 (1824) P < 0.001
2 Summer (Jun-Aug) 22 (21) 13 (687)  
3 Autumn (Sep-Nov) 20 (19) 31 (1643)
4 Winter (Dec-Feb) 35 (34) 22 (1151)
Day and time    X2 = 47.346
1 Mon-Fri 04-10 21 (20) 11 (557) P < 0.001
2 Mon-Fri 10- 16 22 (21) 27 (1439)  
3 Mon-Thu 16- 22 24 (23) 10 (525)  
4 Mon-Thu 22- 04 7 (7) 5 (256)  
5 Sat + Sun 04- 10 5 (5) 3 (180)  
6 Sat + Sun 10- 16 5 (5) 19 (1026)  
7 Fri-Sun 16- 22 7 (7) 18 (967)  
8 Fri-Sun 22- 04 8 (8) 7 (355)  
  1. aChi- square test.