Table 4.
Outcomes of patients discharged with undiagnosed FUO in different studies
| Author/Year | Research type | Total Number of FUOa | Follow-up time | Number of undiagnosed cases | Number of patients with definite diagnosis | Number of patients with spontaneous resolution | Number of deaths |
|---|---|---|---|---|---|---|---|
| Knockaert, D. C. (1996) [7] | Retrospective study | 61 | 5 years | 49 | 12 | 41 | 6/2b |
| Vanderschueren S (2003) [8] | Prospective study | 95 | 574 (125–2052) days | 95 | 0 | 63 | 3 |
| Zenone, T. (2006) [10] | Retrospective study | 37 | – | 37 | 0 | 29 | 1 |
| Bleeker-Rovers, C. P. (2007) [2] | Prospective study | 37 | 12 (6–23) months | 37 | 0 | 21 | 1 |
| Mansueto, P. (2008) [9] | Retrospective study | 29 | 2 years | 21 | 8 | 13 | 4 |
a Total number of patients discharged with undiagnosed FUO
b Six patients died, although the cause of death was considered to be related to the disease that caused FUO in only two cases