Table 3 Level of evidence
From: Chiropractic manipulation in pediatric health conditions – an updated systematic review
Level of evidence | # of studies 2004–2007 | # of studies up to 2003 | total # studies to June 2007 | |||
|---|---|---|---|---|---|---|
systematic reviews | 1 | 1 | 2 | |||
RCT's | 1 | 9 | 10 | |||
Observational | 2 | 1 | 3 | |||
Descriptive | 36 | 141 | 177 | |||
Conference abstracts | 17 | 14 | 31 | |||
RCT | 0 | 5 | 5 | |||
OBSERV | 1 | 0 | 1 | |||
DESC | 16 | 9 | 25 |