Figure 1From: Falls in advanced old age: recalled falls and prospective follow-up of over-90-year-olds in the Cambridge City over-75s Cohort study Retrospective prevalence and incidence of falling – effect of recall period length. The longer the length of time about which respondents are questioned regarding their fall history the more prevalent falling appears. By contrast, calculating falls incidence using recalled falls gives higher incidence rates with shorter recall periods.Back to article page