Table 1. Psychological characteristics of the three trial groups at baseline and postintervention.
| Baseline (n=163) | Postintervention (n=151) | |||||
|---|---|---|---|---|---|---|
| Group 1 | Group 2 | Group 3 | Group 1 | Group 2 | Group 3 | |
| Variable | (n=56)b | (n=53)c | (n=54)d | (n=51) | (n=49) | (n=51) |
| Cancer Worry Scale: median (range) | 9 (6–20) | 9 (6–17) | 10 (6–21) | 9 (6–16) | 9 (6–24) | 9 (6–16) |
| Objective knowledge: median (range)e | ||||||
| Total correct | 17.5 (6–28) | 17 (8–35) | 15(7–31) | 24 (3–33) | 27 (11–36) | 15 (5–33) |
| Total incorrect | 9 (3–18) | 8(1–19) | 8 (1–15) | 8 (2–18) | 7 (0–13) | 9 (2–17) |
| Total ‘don't know’ | 9 (0–23) | 10.5 (0–21) | 12 (0–22) | 2 (0–26) | 1 (0–16) | 12.5 (0–25) |
| Impact of Event Scale: median (range)f | ||||||
| Intrusion | 8 (0–33) | 6 (0–25) | 5 (0–27) | 9 (0–13) | 11(0–35) | 3.5 (0–25) |
| Avoidance | 9 (0–26) | 8 (0–23) | 9 (0–30) | 10.5 (0–29) | 16 (0–40) | 5.5 (0–30) |
| Total score | 18 (0–59) | 12.5 (0–47) | 13 (0–51) | 18 (0–42) | 30 (0–75) | 8.5 (0–51) |
| GHQ-12: | ||||||
| Total score: median (range) | 1 (0–11) | 0 (0–12) | 0 (0–12) | 0 (0–11) | 0 (0–12) | 0 (0–10) |
| ‘Case-level’ distress: n (%)g | 17 (30%) | 10 (20%) | 20 (37%) | 7 (14%) | 7 (14%) | 12 (25%) |
| Perceived likelihood of developing | ||||||
| breast cancer: n (%) | ||||||
| Unlikely | 15 (27%) | 13 (26%) | 17 (33%) | 16 (34%) | 19 (41%) | 14 (28%) |
| Likely | 41 (73%) | 38 (75%) | 35 (67%) | 31 (66%) | 27 (59%) | 36 (72%) |
| Perceived control over developing | ||||||
| breast cancer: n (%) | ||||||
| None at all | 18 (32%) | 21 (40%) | 16 (30%) | 6 (12%) | 14 (29%) | 18 (35%) |
| Some | 38 (68%) | 32 (60%) | 38 (70%) | 44 (88%) | 34 (71%) | 33 (65%) |
a
Sample size varies due to missing data.
b
Group 1 received the scientific and psychosocial information pack.
c
Group 2 received the scientific information pack.
d
Group 3 received standard care only (control group).
e
Possible range of scores: 0–36.
f
A total of 71 participants (44%) at baseline and 52 (35%) postintervention indicated that they had thought about the risk of breast cancer in the past week and therefore completed the Impact of Event Scale.
g
Scores of ⩾3.