Table 3.
The iga protease gene variants among respiratory tract isolates with different properties
| iga genotype | igaA1 alone | igaA2 | igaB gene present | p-value |
|---|---|---|---|---|
| Age (continuous, year), mean (median) | 29.4 (21) | 18.1 (4) | 33.5 (40) | < 0.001 |
| Age category (n = 175, 2 missing) | 0.042 | |||
| > 70 years, n (% within genotype) | 5 (8%) | – | 5 (6%) | |
| 50–70 years, n (% within genotype) | 14 (22%) | 7 (13%) | 20 (25%) | |
| 20–50 years, n (% within genotype) | 15 (24%) | 14 (25%) | 27 (34%) | |
| 6–20 years, n (% within genotype) | 5 (8%) | 3 (5%) | 6 (8%) | |
| < 6 years, n (% within genotype) | 24 (38%) | 31 (56%) | 21 (27%) | |
| Gender, % female | 56% | 53% | 62% | 0.684 |
| Primary care referrals, % | 71% | 65% | 64% | 0.966 |
| Clinical diagnosis (n = 175, 2 missing) | 0.172 | |||
| AOM, n (% within genotype) | 11 (17%) | 13 (24%) | 13 (16%) | |
| Sinusitis, n (% within genotype) | 6 (10%) | 6 (11%) | 10 (13%) | |
| Upper respiratory tract infection, n (% within genotype) | 26 (41%) | 16 (29%) | 24 (30%) | |
| Lower respiratory tract infection, n (% within genotype) | 11 (17%) | 3 (5%) | 16 (20%) | |
| Unclear from referral, n (% within genotype) | 9 (14%) | 17 (31%) | 16 (20%) |
The Kruskal-Wallis test for continuous variables and the chi-2 test for categorical variables were used. Significant p-values are indicated in bold