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Table 1 Demographics of study subjects

From: Antilock braking system effectiveness in prevention of road traffic crashes in Iran

Demographics Mean (±SD) Median
Age of drivers (years) 40(±10.0) 39.0
Daily driving time (hours) 2.2(±1.9) 2.0
Number of intercity trips per week 3.9(±2.3) 3.5
Age of car (years) 4.0(±1.7) 4.0
  1. SD: Standard Deviation.