unifactorial

adjective

uni·​fac·​to·​ri·​al ˌyü-ni-fak-ˈtōr-ē-əl, -ˈtȯr- 

1

: having or being characters or a mode of inheritance dependent on genes at a single genetic locus

2

: having, involving, concerned with, or produced by a single element or cause

a unifactorial versus multifactorial analysis of mortality