Results (
Thai) 1:
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We asked the participants who had a driver’s license andfrequently drove whether they had any physical symptoms thatcould affect driving performance. The 12 symptoms are: (1) symptoms relating to vision, such as a decrease or narrowing of vision(vision problems); (2) symptoms relating to hearing, such as adecrease in hearing or balance (hearing problems); (3) symptomsthat are accompanied by a sudden loss of consciousness, such asseizure or fainting (loss of consciousness); (4) sleep disorders thatare accompanied by severe sleepiness in the afternoon (sleepdisorders); (5) dizziness or headaches (dizziness); (6) difficulties orpain when moving hands, fingers, and arms (pain in hands, fingers,and arms); (7) difficulties or pain when moving feet and toes (pain infeet and toes); (8) difficulties or pain when moving the neck, back,and hip (pain in neck, back, and hip); (9) symptoms involving loss offeeling or sensation in the upper body (symptoms in upper body);(10) symptoms involving loss of feeling or sensation in the lowerbody (symptoms in lower body); (11) symptoms that have thepotential to hinder cognition, calculation, judgment, or the opera-tion of a vehicle (cognitive impairments); and (12) illnesses thatpreclude driving according to a doctor’s advice (illnesses precludingdriving according to a doctor’s advice). Nine of these symptoms(Nos. 1, 3–10) were previously reported was reported and the remaining symptoms (Nos. 11 and 12) arerelated to reasons for suspension or refusal of a driver’s licenseaccording to the Order for Enforcement of the RTA. For each item,participants selected the one response that best applied totheir current condition with a four-point Likert scale (always,sometimes, rarely, never). For the analyses a response of ‘‘always’’ or‘‘sometimes’’ counted as an occurrence of the symptom.
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