Time Group Mean
change
95% CI P
(change = 0)a
P
(intervention)a
Week 1 Intervention 1 -2.54 -3.11; -1.97 0.00 0.76
Intervention 2 -2.5 -3.06; -1.94 0.00
Control -2.78 -3.33; -2.22 0.00
Week 3 Intervention 1 -3.04 -3.6; -2.47 0.00 0.74
Intervention 2 -2.84 -3.4; -2.29 0.00
Control -3.15 -3.71; -2.6 0.00
Week 8 Intervention 1 -2.18 -2.74; -1.61 0.00 0.11
Intervention 2 -2.67 -3.23; -2.11 0.00
Control -3.03 -3.59; -2.47 0.00

aStatistically significant at level P < 0.05 (Wald test).
CI = confidence interval.