Figure 1.

Concordance (κ coefficient) between patients' functional status (Katz Index) reported by physicians and that reported by respondents, according to the number of basic activities of daily living (basic ADL) 'mentioned in the medical record. Bars correspond to the 95% confidence intervals (95% CI) of κ. The broken line highlights the fact that there is no overlap between the 95% CI for 0 and for 2 or more basic ADL. The sample sizes (n) for each basic ADL subgroup are shown beneath the bars.