Figure 1.

Flow diagram showing exclusions from the cohort of malignant bone tumor survivors and the matched comparisons cohort. * Information on inpatient admissions was available from the start of the hospital registers (Denmark, 1977; Finland, 1983; Iceland, 1999; Sweden, 1968), and outpatient visits were available for Denmark from 1995 and for Sweden from 2001. ** Individuals diagnosed more than 5 years before the start of the hospital registers were excluded to avoid a gap in information on the history of hospital contacts and to ensure accurate rates of hospital contacts.