Table 4 Chi-square values, degrees of freedom and p values for testing association with AMI
From: Risk factors for first-time acute myocardial infarction patients in Trinidad
Variable | χ 2 | df | p value |
|---|---|---|---|
Demographic variables | |||
 Sex | 0.051 | 1 | 0.441 |
 Age | 1.504 | 4 | 0.826 |
 Age > 45 years | 3.626 | 1 | 0.035 |
 Ethnicity | 0.193 | 1 | 0.366 |
 Family history of IHD | 112.844 | 1 | ≤ 0.001 |
Clinical conditions | |||
 Chronic disease | |||
  Diabetes | 42.203 | 1 | ≤ 0.001 |
  Hypertension | 38.489 | 1 | ≤ 0.001 |
  Hypercholesterolaemia | 19.760 | 1 | ≤ 0.001 |
  IHD | 101.333 | 1 | ≤ 0.001 |
  Renal insufficiency | 0.025 | 1 | 0.487 |
 Lifestyle | |||
  Smoking | 6.510 | 1 | 0.007 |
  Alcohol consumption | 5.467 | 1 | 0.013 |
 Psychosocial stress | |||
  Stressful life | 19.343 | 1 | ≤ 0.001 |