Drinking patterns were assessed for each of the defined intervals

Drinking patterns were assessed for each of the defined intervals. For intervals during which respondents drank weekly or more often, patterns were assessed by asking how often respondents drank on Fridays during a typical month during the interval and how many drinks they usually had when they drank on a Friday during that interval. These quantity-frequency questions were repeated for Saturdays, Sundays, weekdays, and days when patients PLX4032 molecular weight drank more than usual. For intervals during which respondents drank less often than weekly, they were simply

asked about usual drinking quantity and frequency. Also assessed for each interval were the proportion of drinks represented by beverage types consumed during the period, liquor, beer (as lite/regular/malt liquor, etc.), and wines (fortified versus table wines). The CLDH was expanded for this study to assess drinking patterns during four critical periods related to HCV diagnosis and treatment: (1) before HCV diagnosis; (2) from diagnosis to HCV treatment; (3) during HCV treatment; and (4) from end of treatment to 6-month

follow-up SVR test. Data from the CLDH were used to generate estimates of total volumes of ethanol consumed (in kg) for three periods: (1) before HCV diagnosis; (2) from diagnosis to treatment; and (3) the sum of 1 and 2, which yielded ethanol consumed before HCV treatment. Total volumes of ethanol were divided by 14 g to calculate total numbers selleck of standard drinks, which were divided by number of drinking days to estimate drinking intensity (i.e., drinks per drinking

day) for these three periods. Total drinks were also divided by week and used together with drinks per drinking day to classify patients as heavy or less than heavy drinkers according to National Institute on Alcohol Abuse and Alcoholism (NIAAA) criteria, where heavy drinking is the consumption of more than three drinks on any day or more than seven per week for women and more than four drinks on any day or more than 14 per week for men.11 Duration of abstention before HCV treatment was calculated by subtracting age at last drink before treatment from age at treatment initiation. Drinking during HCV treatment and during the 6 months after treatment is characterized as present or absent. find more Information on CD diagnosis was extracted from an electronic database for Outpatient Services Clinical Records dating back to 2000. Primary care physicians and specialists complete an outpatient services clinical record on which they check off patients’ current and ongoing medical problems, including alcohol and drug abuse, every time they see a patient. Date and type of visit to the health care plan’s Chemical Dependency Recovery Program have been recorded electronically since 2000. Patients having a record of at least one group visit were considered to have a recent history of CD treatment.

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