Table 4.

Predictors of email use with patients among physicians in Florida (n = 1766)

		Physicians who used email with patients	Unadjusted odds ratio (95% CI)	Adjusted odds ratioa (95% CI)
Gender
	Male	274 (19.7%)	1.00	1.00
	Female	130 (21.9%)	1.14 (0.90-1.44)	1.48 (1.12-1.95)
Age
	Less than 40 years old	78 (22.3%)	1.00	1.00
	41-50 years	133 (22.1%)	0.99 (0.72-1.36)	1.21 (0.85-1.71)
	51-60 years	131 (21.1%)	0.93 (0.68-1.28)	1.35 (0.94-1.94)
	61 years or older	62 (15.2%)	0.63 (0.43-0.90)	1.16 (0.76-1.79)
Practice size
	Solo practice	122 (18.0%)	1.00	1.00
	2-9 physicians	199 (19.9%)	1.13 (0.88-1.46)	0.93 (0.71-1.23)
	10-49 physicians	51 (29.7%)	1.66 (1.14-2.41)	0.98 (0.61-1.56)
	50 or more physicians	29 (35.8%)	2.54 (1.55-4.16)	1.29 (0.68-2.43)
Physicianspecialty
	Primary care	243(18.6%)	1.00	1.00
	Other	162 (23.7%)	1.36 (1.08-1.70)	1.43 (1.12-1.84)
Practicesetting
	Single specialty	240 (17.5%)	1.00	1.00
	Multispecialty	133 (28.7%)	1.89 (1.48-2.41)	1.76 (1.30-2.37)
Competency as a computer user
	Very sophisticated	74 (35.4%)	1.00	1.00
	Sophisticated	172 (25.0%)	0.61 (0.44-0.85)	0.55 (0.38-0.79)
	Neutral	137 (17.9%)	0.40 (0.28-0.56)	0.38 (0.26-0.55)
	Unsophisticated	23 (8.4%)	0.17 (0.10-0.28)	0.14 (0.08-0.26)
	Very unsophisticated	2 (4.9%)	0.94 (0.22-0.40)	0.10 (0.02-0.43)

^a Adjusted odds ratios control for all variables in the table.