Two-thirds (65.8%) of those older people who were a part of the frail subgroup reported they could not get about. When asked to indicate the causes of their problems with mobility, 56.1% of the frail subgroup (compared with 10.7% of the non-frail group) reported health problems as the most important reason for their limited mobility, but cost of transport (15.6% of those who listed cost of transport as a barrier to mobility were in the frail group compared with 3.2% from the non-frail group), safety concerns (14.3% from the frail group compared with 2.4% from the non-frail group), unavailability of suitable transport (11.4% of the frail group compared with 2.2% from the non-frail group), and inconvenience of suitable transport (8% from the frail group compared with 2.2% from the non-frail group) were also important