Identification of population characteristics through implementation of the Comprehensive Diabetic Retinopathy Program

Table 1 Characteristics of Patients with Diabetes Presenting to a Retina Clinic

	Entire cohort				Subsample: risk score≧ 2
	N = 2916				N = 1014
	N or Mean	% or SD	Min	Max	N or Mean	% or SD	Min	Max
Patient age Mean (SD)	64.05	14.29	13	99	62.79	13.89	17	98
Race N(%)
Asian	134	4.60			39	3.85
Black, African American	431	14.78			198	19.53
White or Caucasian	2171	74.45			715	70.51
Unknown/other/mixed	180	6.17			62	6.11
Sex N(%)
Female	1365	46.81			467	46.06
Male	1551	53.19			547	53.94
Ever smoked N (%)
Yes	1287	44.14			415	40.93
No/unknown	1629	55.86			599	59.07
Diabetic retinopathy N (%)
Yes	1664	57.06			806	79.49
No	1252	42.94			208	20.51
Diabetes type N(%)
Type 1	356	12.21			143	14.10
Type 2	1883	64.57			736	72.58
Undefined	677	23.22			135	13.31
Maximum microalbumin N(%)
< 30	239	8.20			96	9.47
≧30	186	6.38			159	15.68
Unknown	2491	85.43			759	74.85
History of kidney diagnosis N(%)
Yes	509	17.46			436	43.00
No/unknown	2407	82.54			578	57.00
Duration of diabetes ≧10 years
Yes	1404	48.15			885	87.28
No	1512	51.85			129	12.72
Max patient’s BMI Mean (SD	33.46	7.96	17	81	34.02	8.39	17	81
Maximum systolic blood pressure Mean (SD)	141.91	22.86	80	237	152.71	22.7	87	237
Maximum diastolic blood pressure Mean (SD)	73.73	11.53	40	123	77.19	11.83	42	118
Maximum HbA_1c Mean (SD)	8.01	1.80	4.30	15.70	8.68	2.01	4.70	15.70
Patient’s number of visits Mean (SD)^a	3.91	3.70	1	27	4.85	4.11	1	25

^aFor the number of visits outcome a subcohort of patients who presented with at least 12 months of potential follow up has been evaluated (N = 1504 for the whole cohort; N = 634 for the subgroup of patients with risk score ≥ 2)

ISSN: 2055-8260