WASHINGTON — President Trump has long been focused on measuring his brand, obsessively reviewing television ratings, cataloging his magazine covers and fixating on polls.

But Mr. Trump may not like how his brand is faring in one important metric: his “E-Score,” a number compiled by E-Poll Market Research that is not publicly available, but which marketing executives, network television stations and advertisers rely on to figure out which personalities appeal to audiences — and which do not.

Like the Q Score, which measures the appeal of celebrities, the E-Score calculates awareness and appeal of individuals in the public eye. But it also tracks how individuals score on more than 40 personality and physical attributes.

In terms of those attributes, Mr. Trump was most often described as “aggressive” (48 percent) and “mean” (38 percent), according to his scores from December that were obtained by The New York Times. He also scored high for being “insincere,” “confident” and “creepy.” But he scored between 0 and 4 percent for the attributes of “sexy,” “impartial,” “handsome” and “physically fit.”