Table 4.
Association among anti-glutamic acid decarboxylase autoantibody (anti-GAD Ab) and connecting peptide (C-P).
| Connecting peptide (C-P) | P-value | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L. than N(<3) | Normal (3–6) | H. than N(>6) | Total | |||||||||
| Freq. (%) | Mean titer | Freq. (%) | Mean titer | Freq. (%) | Mean titer | Freq. (%) | Mean titer | |||||
| Anti-GAD Ab (U/ml) | T1D (nu.=60) | +ve | L (nu.=11) | 6 (54.5) | 1.4 | 5 (45.5) | 4.3 | 0 (0) | 0 | 11 (100) | 3.3 | P>0.05 |
| M (nu.=7) | 6 (85.7) | 1.5 | 1 (14.3) | 6.6 | 0 (0) | 0 | 7 (100) | 3.3 | ||||
| H (nu.=33) | 21 (63.6) | 1.7 | 10 (30.3) | 4.2 | 2 (6.1) | 8.1 | 33 (100) | 3.4 | ||||
| T (nu.=51) | 33 (64.7) | 1.6 | 16 (31.4) | 5.1 | 2 (3.9) | 8.1 | 51 (100) | 3.4 | ||||
| -ve (nu.=9) | 8 (88.9) | 3.1 | 1 (11.11) | 4.2 | 0 (0) | 0 | 9 (100) | 3.2 | ||||
| Total (nu.=60) | 41 (68.3) | 2.8 | 17 (28.3) | 4.9 | 2 (3.3) | 8.1 | 60 (100) | 3.4 | ||||
| HC (nu.=30) | Positive | L (nu.=1) | 0 (0%) | 0 | 1 (100) | 4.1 | 0 (0%) | 0 | 1 (100) | 4.1 | P>0.05 | |
| M (nu.=0) | 0 (0%) | 0 | 0 (0%) | 0 | 0 (0%) | 0 | 0 (0%) | 0 | ||||
| H (nu.=0) | 0 (0%) | 0 | 0 (0%) | 0 | 0 (0%) | 0 | 0 (0%) | 0 | ||||
| T (nu.=1) | 0 (0%) | 0 | 1 (100) | 4.1 | 0 (0%) | 0 | 1 (100) | 4.1 | ||||
| Negative (nu.=29) | 1 (3.4) | 3.2 | 11 (37.9) | 6.4 | 17 (58.6) | 8.3 | 29 (100) | 7.4 | ||||
| Total (nu.=30) | 1 (3.3) | 3.2 | 12 (40) | 6.2 | 17 (56) | 8.3 | 30 (100) | 7.3 | ||||
L – Low; M – Moderate; H – High; T – Total; N – Normal; Freq – Frequency; nu – number.