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. 1999 Oct 2;319(7214):884–886. doi: 10.1136/bmj.319.7214.884

Table 2.

Treatment response at follow up

Period after treatment No (%) of participants not needing second treatment
% observed difference (95% confidence interval of difference)
Intervention group (n=30) Control group (n=30)
1 month 23 (77)  6 (20) 57 (36 to 77)
3 months 19 (63) 2 (7) 56 (37 to 76)
6 months 17 (57) 2 (7) 50 (30 to 70)
9 months 16 (53) 2 (7) 46 (27 to 67)
12 months 15 (50) 2 (7) 43 (23 to 63)