@A.B. - thanks for posting this.
(bolding is original to NIH post, not added by me)
"-Meet the 2005 Reeves standardized case definition of
chronic fatigue syndrome. This includes:
--Having greater than or equal to 4 symptoms set forth in the 1994 Fukuda criteria.
--Severe
fatigue as determined using the Multidimensional
fatigue Inventory (MFI): score of greater than or equal to 13 on the general
fatigue subscale or greater than or equal to 10 on the reduced activity subscale.
--Functional impairment as determined using the Short-Form 36 (SF-36): score of greater than or equal to 70 physical function subscale, or greater than or equal to 50 on role physical subscale, or greater than or equal to 75 on social function subscale, or greater than or equal to 66 on emotional subscale.
--Symptom validity as determined using the Centers for Disease Control Symptom Inventory: score of greater than or equal to 25 on the Symptom Inventory Case Definition subscale.
-
fatigue onset greater than 6 months but less than 5 years prior to enrollment."
---- The PI Avindra Nath will be on the CDC PCOCA call on 16 Feb. EDIT - Avindra Nath will be on the CDC Grand Rounds (not the PCOCA call).
Additional edit -
@Bob pointed out that the Reeves 2005 definition used "less than" (as opposed to "greater than" so it is possible there is an error in the posted protocol.