3. NNTs.

Study ID	CER (%)	Endpoint (weeks)	NNT
Brown 2006	38	24	10
Butz 2006	47	52	8
Cowie 2002	39	52	10
Couriel 1999	33.3	52	12
Farber 2004	36	24	11
Gorelick 2006	18	24	21
Greineder 1999	44	52	9
Harish 2001	67	104	6
Madge 1997	7	48	53
Mitchell 1986	8	52	47
Ng 2006	58	12	7
Smith 2004	13	24	29
Stevens 2002	21	52	18
Teach 2006	55	24	7
Walders 2006	24	52	16
Wesseldine 1999	39	24	10
Wilson 2001	47	52	8