Table 2.
Description of data extracted from the included studies in the systematic review and meta-analysis of the association between T. gondii infection and ADHD.
| No | Reference | N | Case: ADHD+ (n) | Control: ADHD- (n) | ADHD+ & T+ (n, %) | ADHD- & T+ (n, %) | OR (95% CI) | P-value |
|---|---|---|---|---|---|---|---|---|
| 1 | Shehata et al [35] | 188 | 14 | 174 | 12 (85.7) | 82 (47.12) | 0.73 (1.48–30.97) | p = 0.034 |
| 2 | Afsharpaiman et al [34] | 96 | 48 | 48 | 2 (4.2) | 1 (2.1) | 2.04 (0.18–23.32) | p = 0.92 |
| 3 | Flegr & Escudero [37] | 1256 | 1223 | 33 | 8 (24.24) | 285 (23.30) | 1.05 (0.47–2.36) | p = 0.694 |
| 4 | Flegr & Horacek [28] | 1336 | 12 | 1324 | 5 (41.66) | 361 (27.26) | 2.22 (0.67–7.33) | p = 0.274 |
| 5 | Flegr & Horacek [29] | 3350 | 79 | 3271 | 27 (34.17) | 520 (15.89) | – | p = 0.000 |
| 6 | Khademvatan et al [33] | 200 | 117 | 83 | 21 (17.94) | 20 (24.09) | 0.69 (0.35–1.37) | p > 0.05 |
| 7 | El-Beshbishi et al [36] | 35 | 5 | 30 | 3 (60) | 3 (10) | 13.50 (1.57–115.94) | – |
| 8 | Akaltun et al [24] | 214 | 107 | 107 | 8 (7.47) | 3 (2.8) | 2.80 (0.72–10.86) | p = 0.215 |
N and n: number, CI: confidence interval; ADHD +: individuals with attention-deficit hyperactivity disorder; ADHD -: individuals without attention-deficit hyperactivity disorder; ADHD + & T+: individuals with attention-deficit hyperactivity disorder and Toxoplasma positive; ADHD – & T+: individuals without attention-deficit hyperactivity disorder and Toxoplasma positive; OR: odds ratio