Association of CRI with STEMI by study seasons (Table 3):
Overall, the proportions of STEMI were similar between AMI cases with or
without CRI during either non-influenza and influenza seasons. However,
STEMI proportion was slightly higher among patients with CRI than
patients without CRI during 2017-influenza season and during
non-influenza season. Nevertheless, the adjusted relative risks for
association of CRI with STEMI were around 1 during different study
seasons which was statistically not significant.