Table 1.

Generic Data Retrieved From the Studies

Reference	Country Where EGFR Testing Was Performed	No. of Cytologic Samples	No. of Histologic Samples	No. of Patients With Cytologic Samples
Allegrini 201228	Italy	108	None	NA
Bellevicine 201429	Italy	362	None	NA
Billah 20119	United States	209	None	209
Hlinkova 201310	Slovakia	679	156	679
Leslie 201411	Australia	168	142	168
Lozano 201112	Spain	150	None	150
Ma 201213	Hong‐Kong	269	None	269
Mallapelle 201314	Italy	305	294	305
Nakajima 201115	Japan	156	None	156
Navani 201216	United Kingdom	119	None	119
Pang 201217	United Kingdoma	165	505	165
Peters 201418	Australia	274b	655b	2012c
Proietti 201419	Italy	161	265	161
Rekhtman 201130	United States	128	None	NA
Santis 201120	United Kingdom	131	None	131
Shi 201421	NAd	169	1313	169
Shiau 201422	Canada	513	1780	513
Stella 201323	Italy	134	None	134
Stigt 201324	Netherlands	126	None	126
Takano 200725	Japan	117	130	117
Wu 201426	China	434	101	434
Yamada 201227	Japan	122	22	122

Abbreviations: EGFR, epidermal growth factor receptor; NA, not available.

^aSamples were from various East Asian countries.

^bThis number was based on 929 samples that had a specified biopsy type; there were 901 additional samples for which this information was not provided.

^cThe total number is indicated, including histologic samples.

^dInformation on EGFR testing performed in individual countries was not available, but samples originated from various countries, including China (and Hong‐Kong), India, the Philippines, Taiwan, Thailand, and Vietnam.