Table 6 Cross-tabulation of cluster membership
Two-stage clustering | ||
|---|---|---|
Subgroup 1 | Subgroup 2 | |
Uncertain of cause and fearful, but not heart-related - with local thoracic 5/6 palpation findings. | Believes pain to be heart- or musculoskeletal-related with crushing pain, and local thoracic 2/3 signs and pectoral tenderness. | |
Single stage clustering | ||
Subgroup 1 | ||
Low activity limitation, high fear, few palpation findings | 173 | 13 |
Subgroup 2 | ||
Typical and atypical angina, short episode, pectoral tenderness | 9 | 144 |
Subgroup 3 | ||
No palpation findings | 64 | |
Subgroup 4 | ||
Female, high fear, diffuse anterior tenderness | 44 | 16 |
Subgroup 5 | ||
Typical angina, short episode, high activity limitation, pectoral tenderness | 5 | 35 |