Table 1.

Baseline levels of urinary KGM (millimole per mole creatinine)

Group	Age range	KGM	Median	Lower quartile	Upper quartile	n
1	4–28 days	2.26±1.06 (1.12–4.60)a	2.42	2.15	3.12	10
2	1–12 months	2.42±1.09 (1.17–4.20)	2.47	1.26	3.48	12
3	1 year–3 years 11 months	2.56±1.40 (0.71–5.63)	2.34	1.71	3.08	13
1–3 combined	4 days–3 years 11 months	2.54±1.18 (0.71–5.63)	2.36	1.59	3.20	35
4	4 years 10 months–9 year 11 months	2.09±0.56 (1.22–2.99)	1.91	1.49	2.48	12
5	11 years 1 month–15 years 10 months	1.30±0.52* (0.53–2.25)	1.20	0.97	1.69	9
6	20 years 3 months–29 years 3 months	0.80±0.18** (0.58–1.25)	0.78	0.69	0.79	10

^*p=0.0019 versus combined groups 1–3

^**p=0.00005 versus combined groups 1–3

^aValues in parenthesis represent the range