. 2014 May 2;29(9):1686–1695. doi: 10.1093/ndt/gfu088

Table 1.

Age-matched female subject pairs in African and Caucasian Americans

	High N_glom				Low N_glom
Pairs	Age	BSA	BMI	N_glom	Age	BSA	BMI	N_glom
Pairs	(years)	(m²)	(Kg/m²)	(million)	(years)	(m²)	(Kg/m²)	(million)
	African Americans (n = 12)
1	23	2.19	38.01	1.13	24	1.71	23.36	0.51
2	29	2.2	37.1	1.11	29	1.95	25.47	0.64
3	37	1.68	17.59	1.2	37	1.89	27.41	0.54
4	39	1.88	25.92	1.63	40	1.98	28.24	0.62
5	49	1.73	24.77	1.07	49	1.91	27.61	0.66
6	50	2.14	36.69	1.18	51	2.14	28.72	0.56
Median	38	2.01	31.31	1.16	38.5^NS	1.93^NS	27.51^NS	0.59***
(IQR)	(28–49)	(1.7–2.2)	(22.9–37.3)	(1.1–1.3)	(28–50)	(1.8–2.0)	(24.9–28.4)	(0.5–0.6)
	Caucasian Americans (n = 12)
1	30	1.67	20.18	1.08	34	1.75	26.9	0.61
2	41	1.76	23.31	1.1	41	1.65	22.58	0.43
3	44	1.85	31.93	1	42	1.46	18.98	0.29
4	47	1.77	25.01	1.37	51	2.45	51.27	0.5
5	47	1.71	23.36	1.2	52	1.61	23.94	0.43
6	59	1.88	31.68	1.1	65	1.67	26.46	0.49
Median	45.5	1.76	24.19	1.1	46.5^NS	1.66^NS	25.2^NS	0.46^****
(IQR)	(38–50)	(1.7–1.9)	(22.5–31.7)	(1.1–1.2)	39–55	(1.6–1.9)	(21.7–32.9)	(0.4–0.5)

N_glom: total nephron number; BSA: body surface area; BMI (body mass index); Pairs: refers to age-matched pairs formed within each race and between N_glom categories; IQR: interquartile range.

****P < 0.0001; ***P < 0.001; NS: not statistically significant—for comparisons within each race and between N_glom categories labels were placed in the Low N_glom column.