Table 2
Multivariate analysis of factors associated with previously undiagnosed diabetes compared to previously diagnosed diabetes
Measures of prior health system contact not included Measures of prior health system contact included
OR 95% CI P-Value OR 95% CI P-Value
Lower Upper Lower Upper
Age at cancer diagnosis (years)
66-70 Reference
71-75 0.89 0.63 1.24 0.49 0.95 0.67 1.34 0.75
76-80 1.12 0.80 1.55 0.52 1.21 0.86 1.70 0.28
>80 1.35 0.99 1.84 0.06 1.35 0.98 1.86 0.07
Race/ethnicity
White Reference
Black 0.89 0.55 1.43 0.62 0.75 0.46 1.24 0.26
Hispanic 1.05 0.62 1.78 0.87 1.02 0.59 1.75 0.95
Other 0.72 0.31 1.67 0.44 0.64 0.27 1.56 0.33
Year of diagnosis
2001 Reference
2002 0.76 0.56 1.03 0.08 0.75 0.55 1.03 0.07
2003 0.69 0.51 0.95 0.02 0.71 0.52 0.98 0.03
2004 0.61 0.44 0.84 <0.01 0.61 0.44 0.85 <0.01
2005 0.69 0.51 0.94 0.02 0.71 0.52 0.97 0.03
NCI Comorbidity Index
0 Reference
1 0.44 0.35 0.56 <0.0001 0.48 0.38 0.61 <0.0001
≥ 2 0.29 0.22 0.40 <0.0001 0.32 0.24 0.44 <0.0001
Indicators of poor performance
0 Reference
≥ 1 0.27 0.22 0.34 <0.0001 0.27 0.21 0.33 <0.0001
Types of physician visits
None Not Applicable Reference
Primary care and medical specialist 0.33 0.21 0.51 <0.0001
Primary care, no medical specialist 0.52 0.32 0.83 0.01
Medical specialist, no primary care 0.50 0.30 0.85 0.01
Other specialist only 0.67 0.32 1.37 0.27
Preventive services
0 Not Applicable Reference
1 0.70 0.47 1.04 0.07
≥ 2 0.58 0.41 0.82 <0.01
Percent in census tract with some college
<25% Reference
≥25% 0.97 0.79 1.20 0.79 0.95 0.76 1.18 0.62
Percent in census tract living in poverty
<5% Reference
5-7% 0.99 0.72 1.37 0.96 0.98 0.70 1.36 0.88
8-12% 1.24 0.94 1.64 0.13 1.21 0.91 1.62 0.18
>12% 1.17 0.88 1.55 0.27 1.04 0.78 1.39 0.78
Type of geographic area
Large metropolitan Reference
Metropolitan 0.82 0.65 1.04 0.10 0.85 0.67 1.08 0.18
Urban 0.74 0.49 1.12 0.16 0.78 0.50 1.20 0.25
Less urban/rural 0.72 0.50 1.03 0.07 0.69 0.48 1.00 0.05

OR: Odds ratio. CI: Confidence interval. Not Applicable: Covariates not included in that model.

Griffiths et al. BMC Cancer 2012 12:613   doi:10.1186/1471-2407-12-613

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