an increasing trendp = 0.335
When tumor size was divided into quartiles (less than 15 mm, 15-equal/larger than 25.5 mm, 25.5 - equal/larger than 40 mm, and larger than 40 mm), only an increasing trend in mean DI18 by tumor size categories was observed among all women studied (p = 0.335) ( Fig. 2 a).