Evaluation of a system of structured, pro-active care for chronic depression in primary care: a randomised controlled trial

Table 1 Frequency of measuring outcome measures

* We had initially planned to collect BDI-II questionnaires 3 monthly, but decided this was too onerous for participants and risked a poor response rate, so this was altered to 6 monthly from the 6 months time-point

ISSN: 1471-244X