    ‘Sentence 1: Although claims data provide the most  accurate information about health care. use,  ensuring adequate follow-up for purposes of  obtaining information from patient self-report is  important because many people do not report  alcohol-related events to insurance compa-nies.    Sentence 2: The insurance companies want to  reduce medical payments by following-up to ensure  patient was sober at the time of incident and  intoxication may lead to @ claim denial on  reimbursement for medical expenses.