Table 4.
aAll percentages are the proportions to the total number of enrolled patients.
bAll percentages are the proportions of patients to the number of subgroup patients in each category, for example, 8,405 of the surgery subgroup in the treatment category.
cAll percentages are the proportions of patients to the number of patients treated with surgery in each category, for example, 5,562 of the patients treated with surgery in the stage I category.
Abbreviation: —, no value.