Intimate partner violence (IPV) has been identified as a global health problem with increasing mental health consequences. During the COVID-19 pandemic lockdown in Nigeria, couples were compelled to spend more time together, regardless of their pre-existing challenges. Our study aims to determine the prevalence of IPV, its forms, and mental health implications among Nigerian households amid the COVID-19 lockdown. A cross-sectional study was implemented which used the snowball sampling technique to recruit 474 participants across 31 states in Nigeria. A semi-structured online questionnaire was distributed using the WhatsApp platform. The relationship between IPV, its forms, and associated factors were analyzed using descriptive analysis and logistic regression with significant value at p ≤ .05 and confidence interval of 95%. Majority (98.1%) of the participants had at least a college degree and 90.1% were employed. Overall prevalence of IPV ranged from 7.2% to 13.5%. Using the lockdown as the landmark, higher prevalence was found before than during the lockdown across physical, emotional, financial, and sexual forms of IPV. Emotional form had the highest prevalence both before and during the lockdown with 11.4% and 3.8% respectively. Furthermore, 22.6% of participants reported that the lockdown affected their mental health. Hopelessness, feelings of failure, being irritable, and constantly under strain were psychological symptoms significantly associated with IPV amid the lockdown. Decreased prevalence of IPV were found in the early phase of the pandemic, suggesting that couples can experience less partner violence during periods of confinement. Our study supports existing evidence that forms of IPV have negative mental health consequences on abused partners.
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