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Effectiveness of follow-up period for global improving allergic rhinitis.
| Follow-up period | Study number | OR | P | I 2 (%) | z |
|---|---|---|---|---|---|
| One month | 1 | 1.26 (0.98, 1.62) | 0.072 | — | 1.8 |
| Three months | 4 | 1.34 (1.17, 1.55)∗ | 0.000 | 0 | 4.09 |
| Six months | 1 | 1.31 (1.10, 1.57)∗ | 0.001 | — | 3.02 |
| Twelve months | 3 | 1.30 (1.11, 1.53)∗ | 0.003 | 17.8 | 3.24 |
Note: ∗P < 0.01.
