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. Author manuscript; available in PMC: 2020 Jul 2.
Published in final edited form as: J Inherit Metab Dis. 2019 Jan;42(1):93–106. doi: 10.1002/jimd.12031

Table 3.

Times at disease manifestation and diagnosis in the North American and European samples

Total Median [Q1, Q3]; n NAGS-D Median [Q1, Q3]; n CPS1-D Median [Q1, Q3]; n mOTC-D Median [Q1, Q3]; n fOTC-D Median [Q1, Q3]; n ASS-D Median [Q1, Q3]; n ASL-D Median [Q1, Q3]; n ARG1-D Median [Q1, Q3]; n HHH syndr. Median [Q1, Q3]; n CITR-D Median [Q1, Q3]; n
Age at last visit [years] NA
EU
17.7 [7.2, 33.4]; 530
11.8 [5.6, 21.5]; 450
26.6 [24.4, 48.5]; 4
8.5 [0.9, 16.6]; 7
8.2 [1.5, 33.9]; 12
9.8 [7.0, 13.3]; 12
15.1 [5.2, 28.4]; 91
10.9 [4.1, 18.0]; 107
29.3 [13.8, 41.0]; 242
19.9 [9.9, 33.4]; 158
9.2 [4.2, 15.8]; 66
8.3 [3.9, 15.0]; 81
8.9 [4.0, 20.1]; 82
9.3 [5.2, 15.4]; 60
16.9 [5.8, 23.2]; 21
8.1 [5.6, 10.7]; 13
28.8 [10.5, 53.5]; 9
11.9 [9.2, 24.6]; 12
5.8 [0.6, 10.9]; 3
n/a
Age at first symptoms EO [days] NA
EU
2 [1, 4]; 113
3 [2, 4]; 113
1 [1, 1]; 1
2 [2, 4]; 4
2 [1, 2]; 6
3 [2, 3]; 6
2 [1, 2]; 31
3 [2, 5]; 20
4 [2, 10]; 8
3 [3, 4]; 5
2 [1, 4]; 37
2 [2, 3; 47
3 [2, 7]; 27
3 [2, 4]; 29
11 [7, 14]; 2
n.i.
1 [1, 1]; 1
4 [2, 6]; 2
n.i.
n/a
Age at first symptoms LO [days] NA
EU
731 [335, 2557]; 197
585 [300, 1813]; 180
731 [731, 731]; 2
3650 [3650, 3650] 1
5844 [3287, 11323]; 5
795 [495, 1140]; 4
913 [396, 3287]; 38
630 [300, 2190]; 50
731 [365, 1826]; 102
720 [365, 2160]; 83
304 [244, 411]; 8
390 [150, 540]; 14
365 [122, 700]; 21
210 [150, 1080]; 15
761 [183, 1461]; 14
815 [34, 1440]; 6
1461 [883, 17897]; 5
450 [274, 630]; 7
106 [29, 183]; 2
n/a
Age at diagnosis EO [days] NA
EU
4 [3, 8]; 109
4 [3, 9]; 116
3653 [3653, 3653]; 1
5 [2, 34]; 4
3 [2, 6]; 5
10 [4, 540]; 6
3 [2, 4]; 30
4 [3, 9]; 20
472 [64, 1141]; 8
9 [3, 13]; 5
4 [3, 6]; 34
5 [3, 7]; 48
5 [3, 7]; 27
4 [3, 9]; 30
396 [8, 1826]; 3
270 [270, 270]; 1
2 [2, 2]; 1
48 [6, 90]; 2
n.i.
n/a
Age at diagnosis LO [days] NA
EU
1424 [417, 4018]; 221
730 [360, 2190]; 185
10775 [731, 20819]; 2
3650 [3650, 3650]; 1
5844 [4383, 11323]; 5
1650 [870, 2100]; 4
1461 [548, 4018]; 39
725 [330, 2400]; 50
1826 [700, 4383]; 119
945 [510, 2555]; 84
533 [320, 2845]; 8
330 [240, 570]; 15
731 [17, 2192]; 29
210 [61, 1080]; 18
1096 [731, 2922]; 13
1308 [35, 2190]; 6
1461 [883, 17897]; 5
639 [450, 780]; 7
365 [365, 365]; 1
n/a
Age at diagnosis ASx [days] NA
EU
8766 [30, 12419]; 143
3650 [21, 12045]; 69
n.i.
n.i.
n.i.
90 [90, 90]; 1
4383 [852, 11323]; 14
2190 [15, 13140]; 15
10592 [7488, 13332]; 96
10768 [3650, 12775]; 38
6 [4, 13]; 14
3 [3, 10]; 7
26 [5, 594]; 16
19 [5, 2190]; 3
30 [30, 30]; 1
21 [9, 36]; 4
15341 [15341, 15341]; 1
25 [25, 25]; 1
7 [7, 7]; 1
n/a
Diagnostic delay EO [days] NA
EU
1 [0, 4]; 103
1 [0, 3]; 113
3652 [3652, 3652]; 1
1 [0, 30]; 4
1 [1, 2]; 5
7 [2, 535]; 6
1 [0, 2]; 29
0 [0, 3]; 20
460 [58, 1134]; 8
5 [0, 10]; 5
0 [0, 3]; 33
1 [0, 3]; 47
1 [0, 4]; 24
1 [0, 2]; 29
1100 [389, 1812]; 2
n.i.
1 [1, 1]; 1
44 [0, 88]; 2
n.i.
n/a
Diagnostic delay LO [days] NA
EU
61 [0; 731]; 195
0 [0, 300]; 173
10044 [0, 20089]; 2
0 [0, 0]; 1
0 [0, 0]; 5
570 [30, 1305]; 4
0 [0, 274]; 38
0 [0, 98]; 48
228 [0, 731]; 102
30 [0, 365]; 79
15 [0, 527]; 8
8 [0, 90]; 14
0 [0, 761]; 21
0 [0, 330]; 15
0 [0; 122]; 13
1 [0, 986]; 5
0 [0, 0]; 5
244 [0, 330]; 7
183 [183, 183]; 1
n/a
Age of death [days] NA
EU
7 [4, 481]; 37
13 [4, 35]; 22
n.i.
n.i.
60 [4, 229]; 5
4 [4, 4]; 2
5 [4, 17]; 23
13 [8, 29]; 14
4923 [2590, 10243]; 4
2245 [1960, 2530]; 2
5 [5, 5]; 1
902 [7, 1797]; 2
7 [4, 10]; 2
3787 [4, 7570]; 2
10240 [3842, 16638]; 2
n.i.
n.i.
n.i.
n.i.
n/a

ARG1-D, arginase 1 deficiency; ASx, asymptomatic; ASL-D, argininosuccinate lyase deficiency; ASS-D, argininosuccinate synthetase deficiency; CITR-D, citrin deficiency; CPS1-D, carbamylphosphate synthetase 1 deficiency; EO, early onset; EU, Europe; fOTC-D, female ornithine transcarbamylase deficiency; HHH syndr., Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome; LO, late onset; mOTC-D, male ornithine transcarbamylase deficiency; NA, North America; NAGS-D, N-acetylglutamate synthase deficiency; n.i., no information on this variable entered in the databases; UCD, urea cycle disorder; n/a, not applicable since disease was not included in the European study sample. Patients in NA and EU without information on particular variables are counted as missing data and are not included in the table.