Table 2. Treatment preferences for hormone replacement therapy at three and nine months' follow up. Values are numbers (percentages) of patients unless stated otherwise

Treatment preference Intervention group Control group % difference (95% CI)

Three months' follow up^*:

  Therapy 36 (40) 40 (42) $-$ 2.1 ( $-$ 16 to 12)

No therapy 41 (46) 30 (32) 14 (1 to 28)

Undecided 13 (14) 25 (26) $-$ 11.9 ( $-$ 23 to $-$ 0.4)

Nine months' follow up:

  Therapy 36 (41) 31 (36)   5.8 ( $-$ 9 to 20)

No therapy 46 (53) 44 (51)   2.3 ( $-$ 13 to 17)

Undecided 5 (6) 12 (14) $-$ 8.1 ( $-$ 17 to 1)

Data are missing for some participants.

Confidence intervals are based on t tests assuming unequal variances between study groups.

^* $chi$ ²=5.573, df=2, P=0.06.

$chi$ ²=3.30, df=2, P=0.2.