American Association for Cancer Research

Table 21

Comparison of GIRK1 expression to tumor characteristics usingχ2 statistical analysis

	GIRK1 positive	n	χ²
LNM status
LNM	50%	26
No LNM	13%	30	0.0029^a
Tumor size (cm)
≤2	26%	39
>2	41%	17	0.25
ER status
ER+	29%	42
ER−	36%	14	0.61
Tumor grade
1	16%	12
2	35%	23
3	33%	21	0.26

	GIRK1 positive	n	χ²
LNM status
LNM	50%	26
No LNM	13%	30	0.0029^a
Tumor size (cm)
≤2	26%	39
>2	41%	17	0.25
ER status
ER+	29%	42
ER−	36%	14	0.61
Tumor grade
1	16%	12
2	35%	23
3	33%	21	0.26

χ² analysis for significance. A significant statistical correlation between GIRK1 expression and tumor characteristics was identified when the returned P was <0.05.

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