. Author manuscript; available in PMC: 2018 Nov 1.

Published in final edited form as: Cancer Prev Res (Phila). 2017 Sep 13;10(11):635–640. doi: 10.1158/1940-6207.CAPR-17-0177

Table 2.

Gene Methylation Prevalence Over Time in Sputum

Gene	Baseline		6-Month		12-Month		24-Month		48-Month
Gene	N	%	N	%	N	%	N	%	N	%
CDKN2	507	35	313	42	220	39	154	45	75	49
MGMT	504	43	313	42	223	47	154	49	75	53
RASSF1	509	10	313	4	223	4	154	0	75	3
DAPK1	502	43	307	42	223	46	154	36	75	31
GATA4	505	71	309	75	222	84	153	78	75	85
GATA5	505	45	311	51	222	52	153	51	75	45
PAX5α	504	31	312	35	223	32	154	29	75	45
PAX5β	507	31	313	41	222	39	154	44	75	53

Minor sample size differences across genes reflect the lack of detection of an unmethylated or methylated gene product, thus leading to unknown status.