The clinical characteristics of study subjects stratified by angiopoietin-2 quintile.

Data are expressed as number (percentage) for categorical variables and mean±SD or median (25th, 75th percentile) for continuous variables, as appropriate.
*P < 0.05 compared with quintile 1
#P < 0.05 compared with quintile 2
†P < 0.05 compared with quintile 3
&P < 0.05 compared with quintile 4.
aAng-2 quintiles cut at 1405.0, 1730.0, 2160.9, and 2829.9pg/ml
bInclude tubular interstitial disease, obstructive nephrology, hypertensive nephrology and unknown causes.
cUrine protein was measured by dipstick test, urine protein 0 as no detectable proteinuria.
The clinical characteristics of study subjects stratified by angiopoietin-2 quintile.