TABLE 2.
Performance of LA and ICT for diagnosis of pneumococccal pneumonia in 215 CAP patients
| Test and result | Reference culture | Sensitivitya | Specificitya |
|---|---|---|---|
| LA | Blood | 54 (13/24) | 98 (188/191) |
| Blood, sputum, and/or nasopharynx | 18 (15/82) | 99 (132/133) | |
| ICTb | |||
| Considered negative | Blood | 54 (13/24) | 92 (176/191) |
| Blood, sputum, and/or nasopharynx | 33 (27/82) | 99 (132/133) | |
| Considered positive | Blood | 79 (19/24) | 83 (158/191) |
| Blood, sputum, and/or nasopharynx | 54 (44/82) | 94 (125/133) |
a
Reported as percentage (number of positive samples/number of samples tested).
b
ICT results were weakly positive but were considered to be negative or positive as indicated.