Temporal patterns of alcohol consumption and attempts to reduce alcohol intake in England

BMC Public Health

Table 2 Changes in motivation to reduce alcohol consumption and in consumption of alcohol in January and December

	Motivation to reduce alcohol consumption
	Model 1^a		Model 2^a		Model 3^b
	OR	95 % CI	OR	95 % CI	OR	95 % CI
Reference (other months)	1	-	1	-	1	-
January	1.36	1.12 – 1.64	1.33	1.10–1.61	1.38	1.13–1.70
December			0.85	0.69–1.05	0.85	0.68–1.05
Differential motivation sub-groups (model 3 plus interactions)
Interaction			P-value^c
Age (6 categories)			0.76
Sex (2 categories)			0.53
Social class (5 categories)			0.29
Occupation (7 categories)			0.16
Education (9 categories)			0.85
Alcohol consumption indicators
	OR	95 % CI	OR	95 % CI	OR	95 % CI
Any alcohol consumption^d
reference (other months)	1	-	1	-	1	-
January	0.95	0.88–1.04	0.94	0.86–1.02	0.92	0.84–1.01
December			0.88	0.81–0.96	0.86	0.79–0.95
Average number of drinks per occasion^e
reference (other months)	1	-	1	-	1	-
January	0.97	0.88–1.06	0.97	0.89–1.07	0.94	0.85–1.04
December			1.04	0.95–1.14	1.04	0.0.94–1.15
Higher risk drinking^d
reference (other months)	1	-	1	-	1	-
January	0.98	0.90–1.08	0.98	0.90–1.08	0.96	0.87–1.06
December			1.00	0.91–1.10	0.99	0.90–1.06
Regular, at least weekly, binge drinking (>6 drinks per occasion)^d
reference (other months)	1	-	1	-	1	-
January	0.97	0.82–1.14	0.97	0.83–1.15	0.92	0.77–1.11
December			1.06	0.90–1.25	1.05	0.88–1.25
Cumulative consumption^f
reference (other months)	1	-	1	-	1	-
January	1.01	0.97–1.04	1.01	0.98–1.04	1.00	1.00–1.00
December			1.03	0.99–1.06	1.02	0.99–1.03

^aalso adjusted for time to account for linear in/decreases over time
^badjusted for time, age, sex, social class, education and occupation
^cStatistically significant (P < 0.05) difference in motivation for any of the interactions was only observed for retired participants (OR = 2.78 (95 % CI 1.12–6.36))
^dquasibinomial regression model
^eordinal regression model
^fgeneralized linear model

ISSN: 1471-2458