Straight-sided beer and cider glasses to reduce alcohol sales for on-site consumption: A randomised crossover trial in bars.
Soc Sci Med
; 278: 113911, 2021 06.
Article
en En
| MEDLINE
| ID: mdl-33962320
ABSTRACT
BACKGROUND:
Straight-sided glasses can slow the rate of lager consumption in a laboratory setting compared with curved glasses. Slower drinking rates may lower overall alcohol consumption. Glass shape is therefore a potential target for intervention. The aim of this randomised crossover trial was to estimate the impact of serving draught beer and cider in straight-sided glasses, compared with usual, predominantly curved glasses, on alcohol sales for on-site consumption in bars.METHODS:
Twenty-four bars in England completed two intervention periods (A) and two control periods (B) in a randomised order 1) BABA; 2) BAAB; 3) ABBA; or 4) ABAB. Each period lasted two weeks and involved serving draught beer and cider in either straight-sided glasses (A) or the venue's usual glasses (≥75% curved; B). The primary outcome was the mean volume (in litres) of draught beer and cider sold weekly, compared between A and B periods using a paired-samples t-test on aggregate data. A regression model adjusted for season, order, special events, and busyness.FINDINGS:
Mean weekly volume sales of draught beer and cider was 690·9 L (SD 491·3 L) across A periods and 732·5 L (SD 501·0 L) across B periods. The adjusted mean difference (A minus B) was 8·9 L per week (95% CI -45·5 to 63·3; p = 0·737).INTERPRETATION:
This study provides no clear evidence that using straight-sided glasses, compared with usual, predominantly curved glasses, reduces the volume of draught beer and cider sold for on-site consumption in bars.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Cerveza
/
Bebidas Alcohólicas
Tipo de estudio:
Clinical_trials
/
Prognostic_studies
Límite:
Humans
País como asunto:
Europa
Idioma:
En
Año:
2021
Tipo del documento:
Article