Table 2. Serum creatinine levels at the second examination (1990 to 1992), by absence/presence of retinal microvascular abnormalities at the third examination (1993 to 1995)

No. at RiskSerum Creatinine
Age-Gender Race Adjusted (Mean [SE])aP
a Mean serum creatinine (mg/dl) at the second examination, adjusted for age, gender, race, and field center in analysis of covariance models.
RetinopathyAbsent94910.900 (0.003)0.43
Present6870.909 (0.011)
    microaneurysmAbsent91050.900 (0.003)0.16
Present3400.922 (0.015)
    retinal hemorrhageAbsent98420.901 (0.003)0.41
Present3060.888 (0.016)
    soft exudatesAbsent98850.900 (0.003)0.17
Present1450.932 (0.023)
Arteriovenous nickingAbsent86310.901 (0.003)0.82
Present13710.899 (0.007)
Focal arteriolar narrowingAbsent83920.900 (0.003)0.30
Present14360.908 (0.007)
Arteriole-to-venule ratioQuintile 518940.899 (0.006)0.73
Quintile 418940.902 (0.006)
Quintile 318940.904 (0.006)
Quintile 218940.894 (0.006)
Quintile 118930.896 (0.006)