Key health and socio-economic characteristics associated with phase to phase attrition.

NOTE:• All data taken from HA excluding 'Disease count' and 'Consultations' taken from GPRR.• NS-SEC = National Statistics Socio-economic Classification (3 class version: based upon head of household main occupation – **using participant's (or in the case of married women the husband's) main occupation during their working life; GDS = geriatric depression scale; sMMSE = standardised mini-mental state examination.• *Excludes participants in institutional care.• †GDS omitted if score • ◊No of activities of daily living (I)ADL's) carried out with difficulty or requiring an aid, appliance, or personal help.• ¥Disease count derived from 8 chronic diseases from GPRR (Table 3. Box 1).• ‡Statistically significant.Key health and socio-economic characteristics associated with phase to phase attrition.