Table 3 Previous case–control studies evaluating the role of Ascariasis and Toxocariasis in development of allergic rhinitis
Parasitic infection | Country/type of participants | Diagnostic antibody | Cases | Controls | Adjusted OR (95% CI) | P value | ||
|---|---|---|---|---|---|---|---|---|
Author/references | Number | Infected, N (%) | Number | Infected, N (%) | ||||
Ascariasis | ||||||||
Zakzuk et al. [22] | Colombia/Rural population/all age | Sera/Specific IgE | 89 | 50 (56.2) | 146 | 58 (39.7) | 2.04 (1.14–3.65) | 0.02 |
Zakzuk et al. [22] | Colombia/Rural population/all age | Skin prick tests | 90 | 22 (24.4) | 153 | 19 (12.4) | 2.21 (1.07–4.56) | 0.03 |
Mohammed Abdalla et al. [21] | Egypt/children | Sera/Specific IgE | 139 | 26 (18.7) | 70 | 7 (10) | Not determined | 0.01 |
Toxocariasis | ||||||||
Yariktas et al. [30] | Turkey/all age | Sera/Specific IgG | 64 | 18 (28.1) | 61 | 7 (11.5) | Not determined | 0.02 |
Yariktas et al. [30] | Turkey/all age | Sera/Specific IgE | 64 | 11 (17.2) | 61 | 2 (3.3) | Not determined | 0.01 |
Manuel et al. [19] | Malaysia/all age | Sera/Specific IgG | 85 | 14 (16.5) | 85 | 32 (37.6) | Not determined | 0.002 Negative association |
Arashi et al. [20] | Iran/all age | Sera/Specific IgG | 93 | 5 (5.4) | 87 | 3 (3.4) | Not determined | 0.39 |
Mohammed Abdalla et al. [21] | Egypt/children | Sera/Specific IgG | 139 | 25 (18) | 70 | 5 (7.1) | Not determined | 0.01 |