Table 9 Reduction and cessation outcomes for short length programme compared to standard length programme

RR (95%CI)

RD (95% CI)

Any sustained reduction (n)

4

2

2.00 (0.46, 8.95)

0.06 (−0.09, 0.22)

>50% sustained reduction (n)

3

1

3.00 (0.45, 20.44)

0.06 (−0.07, 0.20)

Floating 4 week cessation (n)

3

3

1.00 (0.24, 4.10)

0.00 (−0.16, 0.16)

Floating 6 months cessation (n)

0

0

N/A

N/A

Mean difference (SD)

P

Mean (SD) change in cpd baseline – 12 months (baseline carried forward)

−2.29 (7.9)

−2.26 (5.4)

−0.03 (1.65)

0.98

Mean (SD) change in cpd baseline – 12 months (last observation carried forward)

−6.24 (8.81)

−8.41 (9.22)

2.17 (2.19)

0.32

Median (range) change in cpd baseline – 12 months (baseline carried forward)

0 (−30, 20)

0 (−20, 0)

Median (range) change in cpd baseline – 12 months (last observation carried forward)

−5 (−30, 20)

−8 (−35, 18)