Table 1

 Description of the patient population

nAge (mean) (years)Female (%)Primary angioplasty (%)Referral hospital (%)
*Difference in mean age between respondents and non-respondents was significant (Student’s t test: p = 0.029; 95% confidence interval 0.8 to 13.8).
A, patients who participated in the trial; B, patients who did not participate in the trial.
ARespondents10360255271
Non-respondents2268*235059
BRespondents786130089
Non-respondents446434080