. Author manuscript; available in PMC: 2020 Feb 1.

Published in final edited form as: J Ultrasound Med. 2018 Jul 19;38(2):307–319. doi: 10.1002/jum.14690

Table 4.

Differences in Near Zone Mean GSM values at three gain settings: OGV + 10 dB/%, OGV − 10 dB/% and OGV dB/%.

System Identification Code	OGV + 10 Mean (SD)	OGV − 10 Mean (SD)	OGV Mean (SD)	F- Statistic (df)	p-value	Sidak- adjusted p-values
A	41.09 (4.43)	23.29 (8.70)	35.82 (7.25)	8.48 (2, 14)	0.005	0.04
B	108.66 (12.38)	28.65 (7.21)	74.74 (7.74)	91.13 (2, 14)	<0.001	<0.001
C	150.33 (18.63)	131.28 (14.70)	149.39 (4.40)	2.97 (2, 14)	0.089	0.48
D	123.84 (12.56)	81.12 (15.82)	109.18 (11.29)	13.19 (2, 14)	<0.001	<0.001
E	101.85 (14.80)	86.56 (14.86)	107.24 (14.41)	2.67 (2, 14)	0.110	0.56
F	99.34 (9.63)	46.72 (26.46)	79.35 (16.24)	10.01 (2, 14)	0.003	0.02
G	99.56 (9.76)	74.11 (25.00)	98.18 (7.30)	3.97 (2, 14)	0.047	0.29

Significant differences in GSM values are in bold (p<0.05).