Table 2.
Prevalence of adverse drug reactions in Saudi Arabia during 12 months (2017–2018): national and regional estimates
| Category | Level | Sample prevalence of ADR | Estimated population prevalence of ADR | ||||
|---|---|---|---|---|---|---|---|
| Total n | Total n ADR | % (95% CI) | Estimated N | Estimated N of ADRs | % (95% CI) | ||
| All | 5228 | 1226 | 23.45 (22.30–24.60) | 6229,421 | 1743,982 | 28.00 (26.10–30.00) | |
| Region | Al Jouf | 399 | 130 | 32.58 (27.98–37.18) | 101,034 | 31,646 | 31.32 (29.42–32.90) |
| Northern Borders | 405 | 121 | 29.88 (25.42–34.33) | 68,195 | 19,758 | 28.97 (26.94–30.67) | |
| Tabuk | 403 | 90 | 22.33 (18.27–26.40) | 134,576 | 31,017 | 23.05 (20.56–25.15) | |
| Ha’il | 398 | 178 | 44.72 (39.84–49.61) | 195,144 | 80,900 | 41.46 (40.63–42.15) | |
| Al Madinah | 405 | 56 | 13.83 (10.47–17.19) | 235,110 | 38,828 | 16.51 (13.65–18.96) | |
| Al Qasim | 389 | 124 | 31.88 (27.25–36.51) | 307,875 | 97,550 | 31.68 (29.78–33.26) | |
| Makkah | 404 | 107 | 26.49 (22.18–30.79) | 1656,961 | 460,464 | 27.79 (25.48–29.70) | |
| Al Riyadh | 401 | 121 | 30.17 (25.68–34.67) | 1,800,650 | 569,926 | 31.65 (29.68–33.28) | |
| Eastern Province | 410 | 175 | 42.68 (37.90–47.47) | 1,445,400 | 611,725 | 42.32 (41.46–43.03) | |
| Al Baha | 411 | 16 | 3.89 (2.02–5.76) | 12,296 | 455 | 3.70 (1.95–5.32) | |
| Asir | 401 | 34 | 8.48 (5.75–11.21) | 131,302 | 11,849 | 9.02 (6.46–11.31) | |
| Jizan | 400 | 41 | 10.25 (7.28to 13.22) | 108,592 | 11,586 | 10.67 (8.1–12.94) | |
| Najran | 402 | 33 | 8.21 (5.53–10.89) | 32,288 | 2809 | 8.70 (6.22–10.91) | |
ADR adverse drug reactions, CI confidence interval