Table 3 Change in guideline development process
Year of development n = 1630 guidelines | Change | ||
|---|---|---|---|
1994–1999 n = 730 % of guidelines (95% CI) | 2000–2005 n = 630 % of guidelines (95% CI) | % | |
Scientific literature reviewed | 99.6 (99.1–100) | 94.3 (92.5–96.1) | -5.3 |
Computerized literature search | 87.9 (85.6–90.4) | 93.6 (91.7–95.5) | +5.7 |
Search strategy stated in guideline | 33.5 (29.9–37.0) | 41.7 (37.8–45.7) | +8.2 |
Quality of evidence graded | 53.9 (50.2–57.5) | 46.9 (42.9–51.0) | -7.0 |
Consensus reached by: | |||
Open discussion | 78.4 (75.4–81.4) | 95.2 (93.5–96.9) | +16.8 |
Structured process (e.g. Delphi or nominal technique) | 12.5 (10.0–14.9) | 1.3 (0.4–2.2) | -11.2 |
Other (e.g. Expert opinion) | 9.1 (7.0–11.2) | 3.5 (2.1–5.0) | -5.6 |