| Outcome Measures: |
Primary: Number of Participants With a 3-step or Greater Increase in Early Treatment of Diabetic Retinopathy Study (EDTRS) Severity Scale, 3 steps were defined as either a 1-step change in one eye and a 2-step change in the other eye or as a 3-step change in one eye only. EDRTS is a scale with 11 steps (1-11). A generlized log-rank test was used to test difference between treatments., From baseline to end of study, i.e. 5 years, with visits after a half year, one year and thereafter one visit per year. | Secondary: Number of Participants With at Least a 3 Step Improvement or a Persistent 2-step Improvement in the ETDRS Severity Scale., 3 steps were defined as either a 1-step change in one eye and a 2-step change in the other eye or as a 3-step change in one eye only. EDRTS is a scale with 11 steps (1-11)., From baseline to end of study, i.e. 5 years.|Number of Participants With Incident Clinically Significant Macular Edema (CSME) and/or Proliferative Diabetic Retinopathy (PDR)., Clinically Significant Macular Edema (CSME) and Proliferative Diabetic Retinopathy (PDR) are diagnosed via retinal photographs., From baseline to end of study, i.e. 5 years.|Rate of Change in Urinary Albumin Excretion Rate (UAER)., An estimate of the slope from fitting a linear regression of log(UAER) over time (post-randomisation, yearly assessments) for each patient., From Baseline to end of study, i.e. 5 years.
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