Table 2 Hierarchical multiple regression of intentions to choose mastectomy or BCS on predictors from the theory of reasoned action (Model 1) and extended theory of planned behaviour (Model 2)
| R2 | Adjusted R2 | B | Standard error B | Beta | T | |
|---|---|---|---|---|---|---|
| Model 1: | .696 | .674 | ||||
| Direct attitudes | .801 | .163 | .605** | 4.92 | ||
| Subjective norms | .541 | .226 | .294* | 2.39 | ||
| Perceived behavioural control | .339 | .272 | .107 | 1.25 | ||
| Model 2: | .728 | .695 | ||||
| Direct attitudes | .543 | .199 | .410** | 2.73 | ||
| Subjective norms | .413 | .280 | .225 | 1.48 | ||
| Perceived behavioural control | .313 | .270 | .099 | 1.16 | ||
| Anticipated regret | -.555 | .255 | -.238* | −2.18 | ||
| Descriptive norms | -.102 | .196 | .062 | .520 |