Preface to First Edition - lib

214 ANALYSING LONGITUDINAL DATA Itise nurse, referral to mental health professionals (psychologist, psychiatrist,community psychiatric nurse, counsellor), or further physical examination.A number of outcome measures were used in the trial, but here we concentrateon the Beck Depression Inventory II (BDI, Beck et al., 1996). Measurementson this variable were made on the following five occasions:• Prior to treatment,• Two months after treatment began and• At one, three and six months follow-up, i.e., at three, five and eight monthsafter treatment.Table 12.1:BtheB data. Data of a randomised trial evaluatingthe effects of Beat the Blues.drug length treatment bdi.pre bdi.2m bdi.3m bdi.5m bdi.8mNo >6m TAU 29 2 2 NA NAYes >6m BtheB 32 16 24 17 20Yes 6m BtheB 21 17 16 10 9Yes >6m BtheB 26 23 NA NA NAYes 6m TAU 30 32 24 12 2Yes 6m TAU 26 27 23 NA NAYes >6m TAU 30 26 36 27 22Yes >6m BtheB 23 13 13 12 23No 6m BtheB 30 30 29 NA NANo 6m TAU 37 30 33 31 22Yes 6m BtheB 21 6 NA NA NANo 6m TAU 29 22 10 NA NANo >6m TAU 20 21 NA NA NANo >6m TAU 33 23 NA NA NANo >6m BtheB 19 12 13 NA NAYes 6m TAU 47 36 49 34 NAYes >6m BtheB 36 6 0 0 2No