Non-communication of HIV status among sex partners is a notable hurdle in halting transmission, largely due to socio-cultural factors. This study aimed to predict the determinants of male partners’ awareness of women’s serostatus. A total of 8825 women of reproductive age living with HIV who were clients at five comprehensive HIV treatment centres in Benue State, North-Central Nigeria were surveyed between June and December 2017, and 6655 reported having a sexual partner at the time of the survey selected for analysis. A regression model was used to estimate the determinants of male partner awareness of serostatus from the perspective of women. Conditional marginal analyses were conducted to evaluate the marginal effects of identified predictors on the probability of outcomes. Partners of married women were found to have greater odds of being aware of their spouse’s serostatus (adjusted OR (aOR): 3.20; 95%CI: 2.13–4.81) than non-married partners. Similarly, the odds of male partner awareness increased with the years women had been on antiretroviral therapy (aOR: 1.13; 95%CI: 1.07–1.20). The probability of partners of married respondents being aware of their spouse’s HIV serostatus was 97%. The conditional marginal effects of being educated to primary or higher level were 1.2 (95% CI: –0.2 to 2.7) and 1.8 (95% CI: 0.09–3.4) percentage points higher respectively when compared with women with no formal education. Being unemployed or being a trader significantly decreased the probability of partners being aware of respondents’ serostatus when compared with farmers; conditional marginal effects of –6.7 (95% CI: –12.0 to –1.4) and –3.9 (95% CI: –5.7 to –2.2) percentage points, respectively. The study found that relationship status and girl-child education are factors that can improve communication of HIV status to sex partners. Policies and interventions aimed at improving the social determinants of health, and social support for healthy communications in relationships, are recommended to reduce HIV transmission between sex partners.

性伴侣之间不告知 HIV 状况是阻止传播的一个显着障碍，这主要是由于社会文化因素造成的。本研究旨在预测男性伴侣对女性血清状况认知的决定因素。2017 年 6 月至 12 月期间，共有 8825 名感染艾滋病毒的育龄妇女在尼日利亚中北部贝努埃州的五个综合艾滋病毒治疗中心接受了调查，其中 6655 名报告在调查时选择了性伴侣进行分析。从女性的角度，使用回归模型来估计男性伴侣对血清状态意识的决定因素。进行条件边际分析以评估已识别预测因子对结果概率的边际效应。已婚女性的伴侣被发现比未婚伴侣更了解其配偶的血清状况（调整后的 OR (aOR)：3.20；95%CI：2.13–4.81）。同样，随着女性接受抗逆转录病毒治疗的年数增加，男性伴侣知晓的可能性增加（aOR：1.13；95%CI：1.07–1.20）。已婚受访者的伴侣知道其配偶的 HIV 血清状况的概率为 97%。与未受过正规教育的女性相比，受过小学或更高水平教育的条件边际效应分别高出 1.2（95% CI：–0.2 至 2.7）和 1.8（95% CI：0.09–3.4）个百分点。与农民相比，失业或贸易商显着降低了合作伙伴了解受访者血清状况的可能性；–6.7 的条件边际效应（95% CI：–12.0 至 –1。4) 和 –3.9（95% CI：–5.7 至 –2.2）个百分点。该研究发现，关系状况和女童教育是可以改善与性伴侣交流 HIV 状况的因素。建议采取旨在改善健康问题社会决定因素的政策和干预措施，以及社会对关系中健康交流的支持，以减少性伴侣之间的艾滋病毒传播。