Table 1.
Main characteristics of 44 original studies in terms of type of PMI computed and patients’ disease
| No. of studies (%) | |
| Type of PMI computeda | |
| PMI Cleelandb | 35 (79.6) |
| PMI Wardc | 7 (15.9) |
| PMI Zelmand | 2 (4.6) |
| Diseasee | |
| Cancer patients | 33 (75.0) |
| AIDS patients | 5 (11.4) |
| Other | 7 (15.9) |
a
Some studies present more than one PMI type. In two studies it was not possible to detect the type of PMI computed.
b
Computed as analgesic prescribed − worst pain intensity.
c
Computed as analgesic actually used − worst pain intensity.
d
Computed as: analgesic actually used − [present pain intensity + average pain intensity + worst pain intensity]/3.
e
Some studies consider more than one category of patients’ disease.
PMI, Pain Management Index.