From: Factors influencing the long-term sustainment of quality improvements made in addiction treatment facilities: a qualitative study
Agencies interviewed (n = 33)
Agencies not interviewed (n = 161)
p
Mean (SD)
Baseline
8.2 (3.8)
7.2 (3.5)
.134
+Â 9Â months
6.3 (3.6)
5.4 (4.1)
.257
+Â 18Â months
7.1 (3.9)
5.6 (4.0)
.042
+Â 27Â months
6.5 (4.5)
4.7 (4.0)
.021