W. Fals-stewart et al., Drug-abusing patients and their intimate partners: Dyadic adjustment, relationship stability, and substance use, J ABN PSYCH, 108(1), 1999, pp. 11-23
The dyadic adjustment and substance use of couples with a drug-abusing husb
and (rr = 94), couples with a drug-abusing wife (n = 36), couples in which
both partners abused drugs (n = 87), and non-substancea-abusing conflicted
couples (n = 70) were examined. For couples with 1 drug-abusing partner, a
higher percentage of days abstinent during the year before treatment for dr
ug abuse was associated with a higher level of relationship satisfaction. W
hen both partners abused drugs, the relationship between percentage of days
abstinent and relationship satisfaction became stronger and more-negative
as the time partners spent together using drugs increased. A higher percent
age of days abstinent was associated with relationship stability for couple
s with 1 drug-abusing partner during and 1 year after treatment; for couple
s in which both partners abused drugs, a higher percentage of days abstinen
t was associated with relationship instability.