Which preposition to use with inequity

in Occurrences 2%

There was an inequity in regulations governing the sport by which the clubs in the smaller cities were forced, against the will of their owners, to be the weaker organizations, and possibly this was less due to a desire upon the more fortunate and larger clubs to maintain such a state of affairs, than to the fact that the organization generally had expanded upon lines with little regard to the future.

of Occurrences 1%

Inequities of civil rights are gradually being swept away.

Which preposition to use with  inequity