Table 4.

Factors associated with the ability to contact a patient: multivariable analysis

Patient characteristics	OR (95% CI)	p value
Age (years)	1.01 (0.997 to 1.03)	0.105
Female sex	1.46 (1.03 to 2.06)	0.034
Marital statusa
Single	reference
Maried	1.30 (0.88 to 1.94)	0.188
Widowed/Divorced	1.23 (0.65 to 2.32)	0.521
Occupationb
Employed	reference
Unemployed	1.47 (0.93 to 2.34)	0.102
Student	0.998 (0.26 to 3.80)	0.998
Retired	1.42 (0.77 to 2.62)	0.255
Unable to work	1.59 (0.62 to 4.11)	0.337
Median income based on ZIP codec	1.000007 (1.000001 to 1.000013)	0.019
Distance to hospital based on ZIP coded	1.0003 (0.9993 to 1.001)	0.591
Time from surgery to follow-up	0.93 (0.90 to 0.97)	0.001

Number of values in variables with missing data:

^an = 766;

^bn = 726;

^cn = 786;

^dn = 793.