<qa>  How many patients did we plan to recruit?We estimate that a minimum total sample size of 120, with 60 in each arm, would provide power of 0.80 to detest a mean difference of 5 points in the PHQ-9, assuming a repeated measures correlation of 0.6, and 2-tailed alpha of 0.05. This sample size also provides more than 80 power two sided alpha 0.05 to detect any between-group absolute difference in proportions of 15 or more e.g., 45 of usual care patients achieve depression remission vs 60 of intervention patients Katon et al., 2010. Anticipating a 40 attrition rate, we planned to recruit 168 patients in total across our 4 PCN sites. 