Table 1. The Age-Standardized Prevalence (per 100000) and Prevalence Ratio of Monthly Emergency Room Visits and Deaths within 7 Days of Emergency Room Visits.
| Month | ER visits | Deaths within 7 days of ER visits | ||
|---|---|---|---|---|
| Prevalence* (95% CI) | Prevalence ratio† (95% CI) | Prevalence* (95% CI) | Prevalence ratio† (95% CI) | |
| January | 885.47 (882.86–888.08) | 1.00 (1.00–1.00) | 12.69 (12.36–13.01) | 1.02 (0.99–1.05) |
| February | 949.72 (947.02–952.42) | 0.97 (0.97–0.98) | 12.78 (12.45–13.10) | 0.97 (0.94–1.00) |
| March | 919.44 (916.77–922.10) | 1.01 (1.01–1.01) | 13.99 (13.65–14.33) | 1.11 (1.08–1.14) |
| April | 882.06 (879.45–884.66) | 0.98 (0.98–0.98) | 12.25 (11.93–12.56) | 1.05 (1.02–1.08) |
| May | 1031.75 (1028.94–1034.57) | 1.00 (1.00–1.00) | 12.04 (11.73–12.35) | 1.00 (0.97–1.03) |
| June‡ | 708.48 (706.15–710.82) | 0.72 (0.72–0.72) | 10.82 (10.52–11.11) | 0.99 (0.96–1.03) |
| July‡ | 853.01 (850.45–855.57) | 0.85 (0.84–0.85) | 10.89 (10.59–11.19) | 1.00 (0.97–1.03) |
| August | 1007.88 (1005.10–1010.66) | 0.97 (0.97–0.97) | 10.80 (10.50–11.09) | 0.96 (0.93–0.99) |
| September | 985.56 (982.81–988.31) | 0.95 (0.94–0.95) | 11.34 (11.04–11.65) | 0.98 (0.95–1.02) |
| October | 876.61 (874.01–879.21) | 0.95 (0.95–0.96) | 11.70 (11.39–12.01) | 0.96 (0.93–0.99) |
| November | 804.15 (801.66–806.64) | 0.93 (0.93–0.93) | 11.73 (11.42–12.04) | 0.97 (0.94–1.00) |
| December | 871.86 (869.27–874.45) | 0.87 (0.87–0.88) | 12.48 (12.16–12.80) | 0.95 (0.92–0.98) |
ER, emergency room; CI, confidence intervals.
*Age-standardized prevalence per 100000 in 2015; †Average age-standardized prevalence for the corresponding months in 2014 and 2016 were referent in calculating prevalence ratios; ‡Values during the Middle East respiratory syndrome epidemic period (June to July).