Table 3. The MD values of 46 study participants before and after HAART.

Region	Group	MD	95% CI	F	Pa
Frontal lobe_R	1	0.754±0.047	0.740–0.768	1.407	0.250
	2	0.741±0.030	0.732–0.750
	3	0.753±0.041	0.741–0.765
Frontal lobe_L	1	0.753±0.042	0.741–0.765	0.048	0.954
	2	0.754±0.041	0.741–0.766
	3	0.751±0.040	0.739–0.763
Temporal lobe_R	1	0.798±0.025	0.790–0.805	11.908	0.000
	2	0.781±0.034	0.771–0.791*
	3	0.818±0.048	0.804–0.832*#
Temporal lobe_L	1	0.776±0.028	0.767–0.784	2.348	0.131
	2	0.742±0.042	0.730–0.755
	3	0.802±0.222	0.736–0.868
Parietal lobe_R	1	0.794±0.012	0.791–0.798	10.297	0.001
	2	0.767±0.035	0.757–0.778*
	3	0.814±0.075	0.791–0.836#
Parietal lobe_L	1	0.779±0.060	0.761–0.797	1.190	0.298
	2	0.765±0.019	0.760–0.771
	3	0.775±0.034	0.765–0.785
Occipital lobe_R	1	0.774±0.040	0.762–0.786	17.215	0.000
	2	0.757±0.039	0.746–0.769
	3	0.800±0.025	0.793–0.808*#
Occipital lobe_L	1	0.787±0.026	0.780–0.795	0.286	0.720
	2	0.788±0.028	0.779–0.796
	3	0.792±0.039	0.780–0.803
Genu of the corpus callosum	1	0.793±0.030	0.784–0.802	8.437	0.000
	2	0.761±0.050	0.746–0.776*
	3	0.779±0.035	0.769–0.789
Splenium of the corpus callosum	1	0.749±0.047	0.735–0.763	0.755	0.473
	2	0.741±0.041	0.729–0.753
	3	0.752±0.041	0.740–0.765
Body of the corpus callosum_R	1	0.847±0.062	0.829–0.866	1.557	0.216
	2	0.828±0.051	0.813–0.844
	3	0.844±0.051	0.829–0.859
Body of the corpus callosum_L	1	0.846±0.041	0.834–0.858	3.031	0.053
	2	0.834±0.032	0.824–0.843
	3	0.829±0.036	0.818–0.839
Anterior limb of the internal capsule_R	1	0.761±0.038	0.750–0.772	5.898	0.007
	2	0.769±0.028	0.760–0.777
	3	0.781±0.011	0.778–0.784*#
Anterior limb of the internal capsule_L	1	0.770±0.031	0.761–0.779	0.107	0.899
	2	0.769±0.028	0.760–0.777
	3	0.767±0.031	0.758–0.776
Posterior limb of the internal capsule_R	1	0.740±0.022	0.734–0.747	2.716	0.081
	2	0.727±0.026	0.719–0.735
	3	0.740±0.040	0.728–0.751
Posterior limb of the internal capsule_L	1	0.726±0.040	0.714–0.738	7.136	0.001
	2	0.712±0.034	0.701–0.722
	3	0.739±0.021	0.733–0.745#
Genu of the internal capsule_R	1	0.759±0.016	0.755–0.764	2.405	0.106
	2	0.736±0.073	0.714–0.757
	3	0.758±0.063	0.739–0.776
Genu of the internal capsule_L	1	0.761±0.039	0.749–0.772	3.341	0.040
	2	0.748±0.041	0.736–0.760
	3	0.739±0.041	0.727–0.752*
Lenticular nucleus_R	1	0.781±0.040	0.769–0.793	7.159	0.002
	2	0.759 ±0.033	0.749–0.769*
	3	0.783±0.021	0.777–0.789#
Lenticular nucleus_L	1	0.752±0.051	0.737–0.767	3.918	0.023
	2	0.777±0.052	0.761–0.792
	3	0.751±0.047	0.738–0.765#
Caudate nucleus_R	1	0.758±0.039	0.746–0.770	1.579	0.212
	2	0.751±0.036	0.740–0.761
	3	0.763±0.020	0.757–0.769
Caudate nucleus_L	1	0.773±0.040	0.761–0.785	6.729	0.005
	2	0.742±0.023	0.735–0.749*
	3	0.766±0.056	0.750–0.783#
Dorsal thalamus_R	1	0.717±0.040	0.705–0.729	63.418	0.000
	2	0.804±0.052	0.789–0.819*
	3	0.791±0.032	0.781–0.800*
Dorsal thalamus_L	1	0.770±0.020	0.764–0.776	14.768	0.000
	2	0.734±0.033	0.724–0.743*
	3	0.762±0.044	0.749–0.776#
Corona radiata_R	1	0.769±0.017	0.764–0.774	1.655	0.197
	2	0.752±0.073	0.730–0.774
	3	0.750±0.059	0.733–0.767
Corona radiata_L	1	0.758±0.030	0.749–0.767	1.295	0.279
	2	0.745±0.037	0.734–0.756
	3	0.752±0.041	0.740–0.764
Cerebral pedunculus_R	1	0.790±0.027	0.782–0.798	14.533	0.000
	2	0.764±0.035	0.754–0.775*
	3	0.810±0.060	0.792–0.828#
Cerebral pedunculus_L	1	0.791±0.041	0.779–0.804	1.996	0.142
	2	0.805±0.033	0.795–0.815
	3	0.797±0.033	0.787–0.807
Middle cerebellar peduncle_R	1	0.697±0.067	0.677–0.717	1.271	0.279
	2	0.697±0.031	0.688–0.706
	3	0.710±0.021	0.704–0.717
Middle cerebellar peduncle_L	1	0.696±0.053	0.680–0.712	0.776	0.464
	2	0.704±0.048	0.690–0.718
	3	0.707±0.035	0.697–0.718

Data are mean values ± standard deviation. P^a values for comparison among three groups (before HAART, after 6 months of HAART, and after 12 months of HAART). *, P<0.05 (compared with before HAART); ^#, P<0.05 (compared with 6 months of HAART); Group 1, without HAART; Group 2, 6 months of HAART; and Group 3, 12 months of HAART. CI, confidence interval; HAART, highly active antiretroviral therapy; MD, mean diffusivity; L, left, R, right.