Outcome measure | Clinical URTI | Laboratory confirmed URTI | ||||||
---|---|---|---|---|---|---|---|---|
Vitamin D (n = 258) | Placebo (n = 234) | Effect measure (95% CI) | P value | Vitamin D (n = 256) | Placebo (n = 233) | Effect measure (95% CI) | P value | |
Imputed URTI episodes, No. (%) | 91 (30.3) | 114 (38.0) | *RR:0.80 (0.63-1.02) | 0.08 | Â | Â | Â | Â |
Complete case URTI episodes, No. (%) | 70 (27.1) | 80 (34.2) | *RR:0.79 (0.61-1.03) | 0.09 | 26 (10.2) | 44 (18.9) | *RR:0.54 (0.34-0.84) | 0.007 |
€Viral load, mean (SD) |  |  |  |  | 5.51 (1.6) | 6.40 (1.2) |  | 0.036 |
†Symptom duration, mean days, (SD) | 6.0 (1.6) | 6.2 (1.3) | *HR: 1.32 (0.59-2.90) | 0.49 | 5.8 (1.5) | 6.2 (1.2) | *HR: 1.30 (0.49-3.48) | 0.59 |
†Symptom severity, mean (SD) | 218.6 (124.0) | 199.8 (108.1) |  | 0.41 | 229.7 (110.3) | 181.5 (91.9) |  | 0.09 |