Table 2. Results of SCRI analyses.
| Age adjustment | Cases in RW | Cases in CW | KD level of diagnostic certainty* | RR (95% CI) | p-value |
|---|---|---|---|---|---|
| With Doses 1 and 2 CW = Days 29–56 and Doses 3 and 4 CW = Days 43–70 | |||||
| HCUP data | 43 | 44 | Level 1 | 1.07 (0.70–1.63) | 0.76 |
| None | 43 | 44 | Level 1 | 0.98 (0.64–1.49) | 0.91 |
| HCUP data | 53 | 53 | Level 1 + 2 | 1.09 (0.75–1.60) | 0.64 |
| None | 53 | 53 | Level 1 + 2 | 1.00 (0.68–1.46) | 1.00 |
| With all CWs = Days 29–56 and no cases for which (KD admit–KD onset) > 14 days: | |||||
| HCUP data | 41 | 50 | Level 1 | 0.89 (0.59–1.34) | 0.57 |
| None | 41 | 50 | Level 1 | 0.82 (0.54–1.24) | 0.35 |
| HCUP data | 50 | 61 | Level 1 + 2 | 0.89 (0.61–1.29) | 0.53 |
| None | 50 | 61 | Level 1 + 2 | 0.82 (0.56–1.19) | 0.30 |
*Level 1 = confirmed; Level 2 = possible
Abbreviations: CW, control window; HCUP, Healthcare Cost and Utilization Project; KD, Kawasaki disease; RR, relative risk; RW, risk window; SCRI, self-controlled risk interval