Glomerular Filtration Rate and/or Ratio of Urine Albumin to Creatinine as Markers for Diabetic Retinopathy: A Ten-Year Follow-Up Study

Table 1

Descriptive and frequency values of the sample.

Year	Number of subjects screened (n)	Gender: men (%)	Mean age (years)	Diabetes duration (years)	Mean level of HbA1c % mean ± SD (min–max)
2007	4910	2881 (57.31)	64.62 ± 12.23	8.37 ± 6.92	7.37 ± 1.48 (3.9–14)
2008	4873	2802 (56.16)	66.27 ± 12.32	8.66 ± 6.78	6.82 ± 1.24 (4.3–12)
2009	5191	2890 (54.41)	65.39 ± 12.41	8.57 ± 6.12	7.02 ± 1.7 (3.8–15)
2010	5243	3007 (56.03)	65.69 ± 11.7	8.23 ± 6.81	7.47 ± 1.5 (4.5–14.5)
2011	5264	2933 (55.60)	65.22 ± 12.12	8.29 ± 6.56	7.3 ± 1.5 (4–15.5)
2012	6193	3594 (56.72)	65.33 ± 12.08	8.23 ± 6.82	7.63 ± 1.4 (4.3–15.8)
2013	5494	3131 (55.69)	65.87 ± 12.07	8.28 ± 6.11	7.62 ± 1.41 (4.3–15.8)
2014	5983	3511 (57.33)	65.88 ± 11.94	8.34 ± 6.83	7.64 ± 1.4 (4–15.6)
2015	5026	2817 (56.05)	65.84 ± 12.39	8.35 ± 6.77	7.61 ± 1.5 (4.2–15)
2016	5423	3036 (56)	65.94 ± 12.27	8.32 ± 6.72	7.63 ± 1.4 (4.4–15.4)

Descriptive values are presented as number or mean ± standard deviation (SD).