Table 2

The main evaluation index—angiographic success rate analysis results (FAS)

IndexExperimental groupControl groupStatisticsP value
Whether the angiography was successful
 Number of cases (number of missing)128 (0)130 (0)NANA
 Yes n (%)128 (100.00)130 (100.00)
 No n (%)0 (0.00)0 (0.00)
RD (test-control) and 95% CI 0.00 (−0.03 to 0.03)
Whether the catheter was in place
 Number of cases (number of missing)128 (0)129 (1)Fisher1.0000
 Yes n (%)128 (100.00)129 (99.23)
 No n (%)0 (0.00)1 (0.77)
RD (test - control) and 95% CI 0.01 (−0.02 to 0.04)
Whether target vessel imaging was successful
 Number of cases (number of missing)128 (0)129 (1)Fisher1.0000
 Yes n (%)128 (100.00)129 (99.23)
 No n (%)0 (0.00)1 (0.77)
RD (test−control) and 95% CI 0.01 (−0.02 to 0.04)
  • FAS, full analysis set; RD, rate difference.