Table 2.

Comparisons of immunoglobulins and lymphocyte subsets between study and control groups

					p-value
Baseline	6 mo	12 mo	Within groups	Between groups
IgG (mg/dL)						0.682
	Study	953.3±306.4	1,074.3±259.9	887.9±285.5	0.044
	Control	838.2±328.7	838.0±351.1	730.4±264.8	0.177
IgA (mg/dL)						0.048
	Study	118.2±84.3	146.5±59.4	131.8±59.7	0.002
	Control	83.2±40.4	98.0±56.2	111.6±60.3	0.007
IgM (mg/dL)						0.054
	Study	80.0±70.2	128.8±66.2	101.0±38.6	<0.001
	Control	65.0±38.8	73.4±22.3	68.0±19.9	0.162
WBC (/mm3)						0.641
	Study	5,661.1±2,537.0	6,765.3±2,363.8	7,109.0±2,354.7	0.003
	Control	5,601.8±1,743.5	7,000.0±1,501.7	6,902.7±1,672.5	0.004
Lymp (/mm3)						0.216
	Study	2,278.7±1,539.2	2,645.5±1,218.5	2,877.6±1,312.7	0.023
	Control	1,951.6±1,062.5	2,865.5±1,089.6	2,991.4±821.7	<0.001
T cell (/mm3)						0.224
	Study	1,360.0±863.9	1,629.1±748.1	1,840.0±762.5	0.004
	Control	1,073.2±675.9	1,609.9±878.4	1,983.9±655.2	<0.001
B cell (/mm3)						0.566
	Study	584.9±556.3	651.5±524.4	651.3±586.3	0.755
	Control	616.7±458.7	718.7±487.2	623.7±250.1	0.665
T4 (/mm3)						0.463
	Study	539.4±334.0	755.1±428.9	872.6±414.0	0.001
	Control	516.2±370.5	830.1±497.5	1,027.8±372.0	<0.001
T8 (/mm3)						0.118
	Study	787.5±530.4	873.0±427.4	966.9±483.5	0.043
	Control	543.5±291.8	795.8±431.7	971.5±321.8	0.002
T4/T8 ratio						0.326
	Study	0.7±0.3	0.9±0.3	1.0±0.3	0.048
	Control	0.9±0.3	1.1±0.2	1.1±0.2	0.018
NK cell (/mm3)						0.772
	Study	249.2±294.3	259.7±200.5	311.5±384.6	0.323
	Control	206.2±112.5	262.9±190.8	307.1±104.1	0.149

Values represent the mean±SD.

WBC, white blood cell; Lymp, lymphocyte.