Holidays, celebrations, and commiserations: measuring drinking during feasting and fasting to improve national and individual estimates of alcohol consumption

Table 3 Generalized Linear Model of additional units consumed per week through atypical and special occasion drinking

				95% CIs
Variable		Category	B	Lower	Upper	χ ²	P
Sex		Male	0.595	0.176	1.014	7.746	0.005
		Female	Ref
Age		16–24	−1.035	−6.480	4.410	0.139	0.709
		25–34	19.322	14.108	24.536	52.750	<0.001
		35–44	3.649	−1.570	8.868	1.877	0.171
		45–54	10.815	6.497	15.132	24.101	<0.001
		55–64	0.015	−4.271	4.302	0	0.994
		65–74	−2.807	−7.013	1.400	1.710	0.191
		75+	Ref	(χ² = 200.013, P <0.001)
Typical alcohol consumption category ^a	Lower risk	1	1.786	−2.008	5.580	0.851	0.356
		2	2.343	−1.470	6.155	1.450	0.228
		3	2.392	−1.564	6.348	1.405	0.236
	Increasing risk	4	3.589	−0.685	7.862	2.709	0.100
		5	0.962	−3.554	5.479	0.174	0.676
	Higher risk	6	Ref	(χ² = 104.936, P <0.001)
Interactions ^b	Age × Consumption			(χ² = 249.211, P <0.001)
	Age × Sex			(χ² = 3.277, P = 0.773)
	Consumption × Sex			(χ² = 7.688, P = 0.174)

^aPrior to adjustment for atypical/special alcohol consumption; see Box 1. Non-significant terms were removed from the model. Figures in brackets represent overall statistical significance of variable when independent variable has more than two categories. ^bOnly overall statistics are presented for interactions due to space constraints. 95% CI, 95% Confidence intervals; Ref, Reference category.