Month | Risk Ratio | 99% CI | P-value |
---|---|---|---|
January* | 0.65 | 0.49, 0.86 | < 0.0001 |
February | 0.78 | 0.60, 1.02 | 0.17 |
March | 0.92 | 0.71, 1.18 | 0.38 |
April (Reference) | 1.00 | – | – |
May* | 1.33 | 1.05, 1.67 | 0.0018 |
June* | 1.68 | 1.34, 2.10 | < 0.0001 |
July* | 1.80 | 1.44, 2.24 | < 0.0001 |
August* | 1.91 | 1.54, 2.37 | < 0.0001 |
September* | 1.85 | 1.49, 2.30 | < 0.0001 |
October* | 1.37 | 1.09, 1.73 | 0.00042 |
November | 1.06 | 0.83, 1.35 | 0.54 |
December | 1.16 | 0.92, 1.48 | 0.10 |