Table 1.

Demographic and clinical characteristics of the biopsy series

Characteristics2004–2006 n=40072007–2008 n=33352009–2010 n=65432011–2012 n=18,9642013–2014 n=38,302Total n=71,151
Gender
 Male1935 (48.3)1652 (49.5)3179 (48.6)9392 (49.5)19,483 (50.9)35,641 (50.1)
 Female2072 (51.7)1683 (50.5)3364 (51.4)9572 (50.5)18,819 (49.1)35,510 (49.9)
Age, yr
 0–14495 (12.3)329 (9.9)327 (5.0)996 (5.3)2018 (5.3)4165 (5.9)
 15–392175 (54.2)1892 (56.7)3845 (58.8)9975 (52.6)17,587 (45.9)35,474 (49.9)
 40–641205 (30.1)994 (29.8)2116 (32.4)7125 (37.6)16,415 (42.9)27,855 (39.1)
 65–99132 (3.3)120 (3.6)255 (3.9)868 (4.6)2282 (6.0)3657 (5.1)
Age, mean (SD)33.2 (15.7)33.6 (15.5)35.3 (15.1)36.6 (15.5)38.8 (16.1)37.3 (15.9)
Region
 Central694 (17.4)541 (16.4)807 (14.0)2871 (15.3)5057 (13.4)9970 (14.3)
 East1729 (43.3)1201 (36.5)1299 (22.5)3877 (20.6)8604 (22.8)16,710 (24.0)
 North0 (0.0)0 (0.0)1 (0.0)746 (4.0)3829 (10.1)4576 (6.6)
 South1525 (38.2)1144 (34.7)2995 (51.9)7894 (42.0)12,539 (33.2)26,097 (37.5)
 West42 (1.1)407 (12.4)670 (11.6)3427 (18.2)7756 (20.5)12,302 (17.7)
Hospital level
 Tertiary class A3703 (92.9)3000 (91.1)4673 (81.0)14,106 (75.0)29,040 (76.9)54,522 (78.3)
 Tertiary class B121 (3.0)85 (2.6)296 (5.1)2372 (12.6)4529 (12.0)7403 (10.6)
 Secondary163 (4.1)208 (6.3)803 (13.9)2337 (12.4)4216 (11.2)7727 (11.1)
Hospital, N5042139507800938
Clinical syndrome
 NS1094 (27.3)1100 (33.0)2641 (40.4)8838 (46.6)18,626 (48.6)32,299 (45.4)
 NS+AKI95 (2.4)127 (3.8)211 (3.2)643 (3.4)1167 (3.0)2243 (3.2)
 AKI97 (2.4)61 (1.8)138 (2.1)318 (1.7)708 (1.8)1322 (1.9)
 Progressive CKD613 (15.3)488 (14.6)748 (11.4)1498 (7.9)3188 (8.3)6535 (9.2)
 Proteinuria1685 (42.1)1294 (38.8)2522 (38.5)6968 (36.7)13,567 (35.4)26,036 (36.6)
 Isolated hematuria423 (10.6)265 (7.9)283 (4.3)699 (3.7)1046 (2.7)2716 (3.8)
  • All cells are expressed as N (% within year strata). NS, nephrotic syndrome.