TABLE 1.
Summary of included study characteristics
| Study characteristics | ||
|---|---|---|
| Study type | Number of studies | Number of participants |
| Diagnostic accuracy studies | ||
| Prospective | 3 | 102 |
| Cohort studies and case series | ||
| Prospective | 16 | 1417 |
| Retrospective | 35 | 3360 |
| Randomised control trial | ||
| Prospective | 2 | 51 |
| Single-arm interventional studies using novel imaging guidance | ||
| Prospective | 10 | 777 |
| Retrospective | 4 | 476 |
| Study location | Number of studies | Number of participants |
|---|---|---|
| American continent | 14 | 858 |
| Asia | 13 | 1474 |
| Europe | 35 | 3444 |
| Other | 8 | 407 |
| Study design | Number of studies | Number of participants |
|---|---|---|
| Single centre | 55 | 4775 |
| Multicentre | 13 | 1257 |
| Unclear | 2 | 151 |
| Participant characteristics | Range | |
|---|---|---|
| Male, % | 33–100 | |
| Mean age, years | 46.2–64 | |
| Mean FVC, % pred | 64.6–98.3 | |
| Mean DLCO, % pred | 49.1–76.3 | |
DLCO: diffusing capacity for carbon monoxide; FVC: forced vital capacity.