Table 2.

Meta regression for odds ratio at landmark and surveillance

	Landmark			Surveillance
Variable	Beta coefficient	P	No. of studies	Beta coefficient	P	No. of studies
Median age	−0.41	.035	26	0.065	.697	21
Proportion of males	−0.23	.24	27	−0.276	.225	24
Smoking	0.25	.68	5	0.549	.259	6
≥Stage III	0.38	.07	23	0.201	.438	17
Time to landmark	0.45	.02	26	−	−	−
No. of surveillance draws	−	−	−	0.362	.184	15
% Receiving adjuvant chemotherapy	−0.18	.4	21	0.411	.090	15
% Receiving neoadjuvant chemotherapy	−0.51	.24	7	0.188	.722	6
Baseline ctDNA positivity	0.14	.48	26	0.241	.293	21