Control Variables Age Time of Heart Attack Occ., Sex & Smoker & Sport & Hypertension & DM Age Correlation 1.000 0.211 Significance (2-tailed) . 0.004 df 0 178 Time of Heart Attack Occ., Correlation 0.211 1.000 Significance (2-tailed) 0.004 . df 178 0

Table 4: Partial correlation with reference to sex, smoking, sporting, hypertension and diabetic mellitus variables.