Table 1.

Compare means

Sense of stress and confusion groups		Treated group			Sham-treated group
		Total pre-	Total post-	Age	Total pre-	Total post-	Age
0	Mean	118.53	91.57	42.33	119.76	112.84	50.38
	n	175	175	175	55	55	55
	Standard deviation	6.620	8.176	11.305	6.75	7.76	19.7
1	Mean	123.90	97.52	41.62	124.17	121.83	46.68
	n	513	513	513	145	145	145
	Standard deviation	6.233	8.102	11.372	6.79	7.34	18.89
Total	Mean	122.53	96.01	41.80	122.96	122.11	47.7
	n	688	688	688	200	200	200
	Standard deviation	6.747	8.520	11.35	7.04	7.45	19.14