From: Month of birth, vitamin D and risk of immune-mediated disease: a case control study
Month | All immune-mediated diseases | Multiple sclerosis | Rheumatoid arthritis | ||||||
---|---|---|---|---|---|---|---|---|---|
Birth % | OR | 95% CI | Birth % | OR | 95% CI | Birth % | OR | 95% CI | |
Jan | 8.63 | 1.02 + | 0.99 to 1.04 | 8.51 | 1.01 | 0.97 to 1.05 | 8.44 | 0.99 | 0.95 to 1.03 |
Feb | 7.90 | 1.01 | 0.99 to 1.04 | 7.76 | 0.99 | 0.95 to 1.03 | 7.94 | 1.02 | 0.98 to 1.06 |
Mar | 8.88 | 1.00 | 0.98 to 1.02 | 8.67 | 0.97 | 0.93 to 1.01 | 8.99 | 1.01 | 0.98 to 1.05 |
Apr | 8.77 | 1.05 + | 1.02 to 1.07 | 8.79 | 1.05 + | 1.002 to 1.09 | 8.78 | 1.05 + | 1.01 to 1.08 |
May | 8.83 | 1.01 | 0.99 to 1.03 | 9.41 | 1.08 + | 1.04 to 1.13 | 8.64 | 0.99 | 0.95 to 1.03 |
Jun | 8.44 | 1.01 | 0.99 to 1.04 | 8.70 | 1.04 | 1.01 to 1.09 | 8.47 | 1.02 | 0.98 to 1.06 |
Jul | 8.49 | 0.99 | 0.97 to 1.01 | 8.51 | 0.99 | 0.95 to 1.04 | 8.37 | 0.98 | 0.94 to 1.01 |
Aug | 8.16 | 0.97 - | 0.95 to 0.99 | 8.20 | 0.98 | 0.94 to 1.02 | 8.14 | 0.97 - | 0.93 to 1.00 |
Sep | 8.12 | 1.00 | 0.97 to 1.02 | 7.94 | 0.96 | 0.92 to 1.01 | 8.10 | 1.00 | 0.96 to 1.03 |
Oct | 8.05 | 0.95 - | 0.92 to 0.97 | 8.08 | 0.96 - | 0.92 to 1.00 | 8.20 | 0.96 - | 0.93 to 0.99 |
Nov | 7.61 | 0.98 | 0.96 to 1.00 | 7.43 | 0.96 - | 0.91 to 1.00 | 7.65 | 0.99 | 0.95 to 1.02 |
Dec | 8.11 | 1.01 | 0.99 to 1.03 | 8.01 | 1.00 | 0.96 to 1.04 | 8.30 | 1.04 + | 1.00 to 1.07 |
Month | Ulcerative colitis | Systemic lupus erythematosus | Crohn's disease | ||||||
Birth % | OR | 95% CI | Birth % | OR | 95% CI | Birth % | OR | 95% CI | |
Jan | 8.63 | 1.02 | 0.97 to 1.06 | 9.57 | 1.14 + | 1.03 to 1.27 | 8.99 | 1.06 + | 1.01 to 1.11 |
Feb | 8.07 | 1.04 + | 0.99 to 1.09 | 7.86 | 1.00 | 0.90 to 1.13 | 7.84 | 1.01 | 0.96 to 1.06 |
Mar | 8.90 | 1.00 | 0.96 to 1.05 | 8.75 | 0.98 | 0.88 to 1.09 | 8.94 | 1.01 | 0.96 to 1.06 |
Apr | 8.92 | 1.06 + | 1.02 to 1.11 | 8.85 | 1.05 | 0.95 to 1.18 | 8.54 | 1.02 | 0.97 to 1.07 |
May | 8.73 | 1.00 | 0.96 to 1.05 | 9.71 | 1.12 + | 1.01 to 1.24 | 8.40 | 0.96 - | 0.91 to 1.01 |
Jun | 8.25 | 0.99 | 0.94 to 1.04 | 7.61 | 0.90 | 0.81 to 1.02 | 8.44 | 1.02 | 0.97 to 1.07 |
Jul | 8.44 | 0.99 | 0.94 to 1.03 | 8.58 | 1.00 | 0.90 to 1.12 | 8.75 | 1.03 | 0.98 to 1.08 |
Aug | 8.15 | 0.97 - | 0.93 to 1.02 | 8.40 | 1.00 | 0.90 to 1.12 | 8.13 | 0.97 | 0.92 to 1.02 |
Sep | 8.18 | 1.00 | 0.96 to 1.05 | 7.51 | 0.91 - | 0.81 to 1.02 | 8.45 | 1.04 + | 0.99 to 1.10 |
Oct | 7.91 | 0.93 - | 0.88 to 0.97 | 7.93 | 0.94 | 0.84 to 1.05 | 7.89 | 0.92 - | 0.87 to 0.97 |
Nov | 7.69 | 0.99 | 0.95 to 1.04 | 7.09 | 0.91 - | 0.81 to 1.03 | 7.78 | 1.00 | 0.95 to 1.06 |
Dec | 8.13 | 1.01 | 0.97 to 1.06 | 8.13 | 1.02 | 0.91 to 1.14 | 7.84 | 0.97 | 0.93 to 1.03 |