Table 2.

Association between EGFR mutations and CA‐repeat in 113 lung adenocarcinoma patients

	EGFR mutation			P
	Present		Absent
	Deletion	Substitution
Exon 18
CA‐repeat
<17	0	1 (1.8%)	55 (98.2%)	ns †
≥17	0	2 (3.5%)	55 (96.5%)
Exon 19
CA‐repeat
<17	16 (28.6%)	0	40 (71.4%)	0.02
≥17	6 (10.5%)	0	51 (89.5%)
Exon 21
CA‐repeat
<17	0	10 (17.9%)	46 (82.1%)	ns
≥17	0	13 (22.8%)	44 (77.2%)

^† Not significant.

EGFR, epidermal growth factor receptor.