Table 1. Renal Length of MMA subjects vs. Controls, by age.

The average and SD for renal length values for MMA patients (all enzymatic subtypes) and control subjects are presented in one year age intervals. Right and left renal lengths are averaged. Comparisons using the t test assumed unequal variances. Data from controls are from Rosenbaum et al.²⁶ Asterisk denotes data not available.

MMA Patients			Controls
Age (years)	Observations	Renal Length (cm)	Observations	Renal Length (cm)	p-value
2 to 3	6	6.22 ± 0.88	12	7.36 ± 0.54	0.01
3 to 4	6	7.19 ± 0.78	30	7.36 ± 0.64	0.32
4 to 5	7	6.88 ± 0.80	26	7.87 ± 0.50	0.013
5 to 6	2	6.48 ± 1.17	30	8.09 ± 0.54	0.009
6 to 7	7	7.24 ±1.2	14	7.83 ± 0.72	0.13
7 to 8	6	7.87 ± 0.86	18	8.33 ± 0.51	0.13
8 to 9	4	8.39 ± 0.99	18	8.90 ± 0.88	0.19
9 to 10	2	7.5 ± 1.77	14	9.20 ± 0.90	0.19
10 to 11	6	7.57 ±1.17	28	9.17 ± 0.82	0.008
11 to 12	3	7.64 ± 0.67	22	9.60 ± 0.64	0.008
12 to 13	2	9.03 ± 0.53	18	10.42 ± 0.87	0.023
13 to 14	5	9.12 ± 0.62	14	9.79 ± 0.75	0.039
14 to 15	2	8.85 ± 0.07	14	10.05 ± 0.62	<0.001
15 to 16	*	*	6	10.93 ± 0.76	*
16 to 17	1	8.65	10	10.04 ± 0.86	*
17 to 18	3	9.52 ± 0.42	4	10.53 ± 0.29	0.016
18 to 19	1	8.8	8	10.81 ± 1.13	*
TOTAL	62		768