Additional file 1: of The effect of using social pressure in cover letters to improve retention in a longitudinal health study: an embedded randomised controlled retention trial

Full text of the covering letters sent with the CLASSIC questionnaires. (PDF 66 kb

Additional file 4: of Is telephone health coaching a useful population health strategy for supporting older people with multimorbidity? An evaluation of reach, effectiveness and cost-effectiveness using a ‘trial within a cohort’

The results of the cost-effectiveness analyses in complete case analysis. (DOCX 2606 kb

Additional file 3: of Is telephone health coaching a useful population health strategy for supporting older people with multimorbidity? An evaluation of reach, effectiveness and cost-effectiveness using a ‘trial within a cohort’

Table A. Comparison of participants consenting with those not consenting. Table B. Costs of the health coaching intervention. Table C. Other NHS unit costs (XLSX 17 kb

Additional file 2: of Is telephone health coaching a useful population health strategy for supporting older people with multimorbidity? An evaluation of reach, effectiveness and cost-effectiveness using a ‘trial within a cohort’

Protocol for the PROTECTS trial. (DOC 356 kb