Table 3.

General practitioner and patient characteristics associated with detection of smoking

		Unadjusted OR (95% CI)	Unadjusted	Adjusted OR # (95% CI)	Adjusted
			p-value		p-value †
General practitioner characteristics
Gender	Male	Reference	0.858
	Female	0.93 (.41-2.11)
Age	25-44	Reference	0.027	Reference
	45-54	2.85 (1.23-6.60)		2.78 (1.15-6.76)	0.057
	≥55	2.46 (1.08-5.60)		2.38 (0.95-5.96)
Years in general practice	<5		NA
	6-19
	≥20
Number of sessions per week	≤5		NA
	5.5-10
	>10
Patient characteristics
Gender	Male	Reference	0.920
	Female	1.03 (0.60-1.78)
Age	18-29	Reference
	30-44	1.43 (0.73-2.78)
	45-64	2.57 (1.36-4.87)
	≥65	2.22 (0.63-7.79)
Highest level of education	High school or below	Reference	0.013	Reference
	Technical certificate, Diploma, University or Other	0.45 (0.24-0.85)		0.52 (0.27-0.99)	0.046
Ethnicity	Aboriginal/Torres Strait Islander or Other	Reference	0.830
	Caucasian	0.91 (0.38-2.20)
Private health insurance	Yes	Reference	0.036
	No	2.12 (1.05-4.26)
Number of times seen this general practitioner in last 12 months	0-3	Reference	0.530
	4-6	1.53 (0.66-3.58)
	7-10	0.90 (0.38-2.13)
	More than 10	1.63 (0.69-3.81)
Visited this clinic previously	Yes	Reference	0.717
	No	1.49 (0.17-12.95)
Health care concession card	Yes	Reference	0.475
	No	0.78 (0.40-1.53)
History type 2 diabetes	Yes	Reference	0.138
	No	0.34 (0.08-1.41)
History high blood pressure	Yes	Reference	0.011	Reference
	No	0.38 (0.18-0.80)		0.48 (0.20-1.10)	0.084
History high cholesterol	Yes	Reference	0.076
	No	0.44 (0.17-1.09)
History of heart problems or stroke	Yes	Reference	0.326
	No	2.12 (0.47-9.51)
Overweight or obese	Not at risk	Reference	0.070
	At risk	0.58 (0.32-1.04)
Alcohol consumption	Not at risk	Reference	0.071
	At risk	0.50 (0.23-1.06)

OR = odds ratio. CI = confidence interval. ^# Adjusted for all variables in the final model.

^† p-value from the Wald test. NA = Not available as univariate analysis could not be performed due to low cell counts.