The quality of life of 17-year-olds reared in lesbian-parent families did not differ from that of a matched group of adolescents who grew up in heterosexual-parent families. The study, also found, among teens with lesbian mothers, no difference in quality of life based on donor status (whether they had been conceived by known or unknown donors), experienced stigmatization (whether or not they had experienced discrimination), or maternal relationship continuity (whether their mothers were still together or had separated).  The data in the new report comes from adolescents whose families are participants in the National Longitudinal Lesbian Family Study (NLLFS), the longest-running and largest prospective investigation of lesbian mothers and their children in the United States. Initiated in 1986, the NLLFS examines the social, psychological, and emotional development of the children as well as the dynamics of planned lesbian families.