Table 4:

Number and percentage of each modality from baseline to control phases^a

	Baseline		I-Phase I		I-Phase II		I-Phase III		C-Phase I		C-Phase II		C-Phase III
	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
RB-MRI	38	18.5	9	14.5	10	11.6	8	8.7	18	18.9	11	9.4	16	14.3
UF-MRI	37	18.0	31	50.0	49	57.0	45	48.9	42	44.2	56	47.9	54	48.2
Head CT	62	30.2	5	8.1	6	7.0	7	7.6	10	10.5	14	12.0	9	8.0
Head US	68	33.2	17	27.4	21	24.4	32	34.8	25	26.3	36	30.8	33	29.5

Note:—I-Phase indicates improvement phase; C-phase, control phase; RB-MRI, routine brain MRI.

^aDuration of baseline was 3 months, followed by 3 months of improvement (each phase for 1 month), and 3 months of control phases (each phase for 1 month).