Temporal Trends in Sexual Identity and Sociodemographic Disparities in Stockholm, Sweden, 2010–2021.

This article examines temporal trends in sexual identity and associated sociodemographic disparities in Stockholm County, Sweden, from 2010 to 2021 following the 2009 adoption of gender-neutral marriage legislation. Using data from three cross-sectional surveys of the Stockholm Public Health Cohort involving over 76,000 participants aged 16 and older, the study found that bisexual identity doubled among both females and males, with the most pronounced increases among younger females, particularly those in Generation Z (born 1997–2012). Bisexual identity was consistently associated with being female, younger, having lower income, and never having been married, although income and marital disparities narrowed over time. Homosexual identity remained relatively stable and was linked to being male, higher education and income, living alone, and never having been married in some years. The findings suggest shifting societal and cultural norms influencing sexual identity reporting and highlight persistent socioeconomic inequalities affecting bisexual individuals, underscoring the need for targeted public health policies to promote equity.