TY - JOUR PY - 2018// TI - Pre-drinking and the temporal gradient of intoxication in a New Zealand nightlife environment JO - Journal of studies on alcohol and drugs A1 - Cameron, Michael P. A1 - Roskruge, Matthew J. A1 - Droste, Nic A1 - Miller, Peter G. SP - 119 EP - 125 VL - 79 IS - 1 N2 - OBJECTIVE: We measured changes in the average level of intoxication over time in the nighttime economy and identified the factors associated with intoxication, including pre-drinking.

METHOD: A random intercept sample of 320 pedestrians (105 women; 215 men) was interviewed and received breath alcohol analysis in the nighttime economy of Hamilton, New Zealand. Data were collected over a five-night period, between 7 P.M. and 2:30 A.M. Data were analyzed by plotting the moving average breath alcohol concentration (BrAC) over time and using linear regression models to identify the factors associated with BrAC.

RESULTS: Mean BrAC was 241.5 mcg/L for the full sample; 179.7 for women and 271.7 for men, which is a statistically significant difference. Mean BrAC was also significantly higher among those who engaged in pre-drinking than those who did not. In the regression models, time of night and pre-drinking were significantly associated with higher BrAC. The effect of pre-drinking on BrAC was larger for women than for men.

CONCLUSIONS: The average level of intoxication increases throughout the night. However, this masks a potentially important gender difference, in that women's intoxication levels stop increasing after midnight, whereas men's increase continuously through the night. Similarly, intoxication of pre-drinkers stops increasing from 11 P.M., although remaining higher than non-pre-drinkers throughout the night. Analysis of BrAC provides a more nuanced understanding of intoxication levels in the nighttime economy.

Language: en

LA - en SN - 1937-1888 UR - http://dx.doi.org/ ID - ref1 ER -