Hospital Diabetes Clinic Optometrist General Practitioner General Ophthalmology clinic General Practitioner aware of renal failure 2 4 3 1 General Practitioner unaware of renal failure 6 0 1 0 Chi square 7.71 df 3 p<0.05

Table 3: Chi square test comparing initial referral source in those whose General Practitioners were aware and unaware of albuminuria.