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Fig. 1 | BMC Health Services Research

Fig. 1

From: Hospitalisation costs of metastatic melanoma in France; the MELISSA study (MELanoma In hoSpital coSts Assessment)

Fig. 1

Patient trajectories in the PMSI database. Patients are identified in the PMSI database when they undergo a hospitalisation fulfilling the eligibility criteria for metastatic melanoma. This is the index hospitalisation. At this time, the patient is attributed to the pre-progression stage or the post-progression stage. The patient is followed until one of three endpoints is reached: 1. the patient changes progression stage (only changes from pre-progression to post-progression are possible); 2. the patient dies in hospital, which is recorded in the database; 3. censure at the end of the follow-up period (31st December 2013). In the last case it is not known whether the patient has died at home or is still alive, since out-of-hospital deaths are not recorded in the database. Between the index hospitalisation and any one of these endpoints, the patient may undergo one or more hospitalisations (H) which are accounted separately for the pre-progression stage and the post-progression stages

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