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Household HIV competence and illness identity in HIV: Insights from the baseline phase of the SINAKO cluster randomised controlled trial

This study from the SINAKO trial demonstrates that higher household HIV competence is significantly associated with greater acceptance and lower rejection of HIV as part of one's identity, highlighting the critical role of family support in shaping the illness experience of people living with HIV.

Original authors: Neo Sematlane, Linda Campbell, Caroline Masquillier, Edwin Wouters, Lucia Knight

Published 2026-06-25

📖 5 min read🧠 Deep dive

CC BY 4.0

Original authors: Neo Sematlane, Linda Campbell, Caroline Masquillier, Edwin Wouters, Lucia Knight

Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). ✨ This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer

The Big Picture: Living with HIV is a Team Sport

Imagine living with HIV not just as a medical condition, but as a new character in the story of your life. The paper asks: How does this character fit into your story? Do you accept it as a normal part of who you are? Do you hate it and try to push it away? Does it take over your whole life? Or does it somehow make your life better?

The researchers call this "Illness Identity." They wanted to see if the household (the family and home environment) acts like a coach or a referee that helps shape how a person sees their HIV status.

The Four Ways People See Their Illness

The study looked at four specific ways people integrate HIV into their identity:

Rejection: Imagine trying to build a house but refusing to acknowledge the foundation exists. You deny the HIV is part of you. This often leads to stress and skipping medication.
Engulfment: Imagine the HIV character is so loud it drowns out everyone else in the room. Your entire identity becomes "I am HIV." You feel consumed by it.
Acceptance: This is like making peace with a new roommate. You acknowledge HIV is part of your life, but it doesn't define your whole existence. You can still be a parent, a worker, and a friend.
Enrichment: This is the "silver lining." It's when someone feels that dealing with HIV has actually made them stronger, wiser, or more compassionate.

The "Household HIV Competence" Coach

The researchers introduced a concept called Household HIV Competence. Think of your household as a team. A "competent" team is one that:

Creates a safe space where you can talk openly about HIV without fear.
Stands together to support you in taking your medicine.
Shares knowledge about how to stay healthy.
Welcomes help from outside (like community health workers).

A "non-competent" team might be full of silence, stigma, or arguments about the diagnosis.

What the Study Found

The researchers surveyed 316 adults living with HIV in South Africa (mostly women) who had recently started their treatment. They asked: Does having a supportive "team" (household) change how you see your illness?

Here is what they discovered:

1. The "Rejection" Shield
When a household was highly competent (supportive, open, and informed), people were less likely to reject their HIV status.

The Analogy: If your family is on your side, you feel less need to hide or deny the diagnosis. The "coach" helps you stop fighting the reality of the situation.

2. The "Acceptance" Boost
Higher household competence was linked to greater acceptance.

The Analogy: A supportive family helps you make peace with your new reality. They help you say, "Yes, I have HIV, and that's okay. I can still live a full life."

3. The "Engulfment" and "Enrichment" Mystery
Interestingly, the study found no clear link between household support and the other two dimensions:

Engulfment: A supportive home didn't necessarily stop people from feeling "swallowed up" by their illness.
Enrichment: A supportive home didn't automatically make people feel that their life was "better" because of HIV.
The Analogy: The researchers suggest that feeling "swallowed up" by the illness or finding "growth" in it might be very personal, internal journeys. A supportive family helps you accept the diagnosis, but it might not control how deeply you feel consumed by it or how much personal growth you find in the struggle.

Other Interesting Details

Time Heals: People who had lived with HIV for a longer time were more likely to accept it and find enrichment. It seems like a process that happens over years, not just days.
Age Matters: Older participants were slightly less likely to reject their diagnosis.
Gender: Surprisingly, being male or female didn't change how people viewed their illness in this study (though the study had very few men, so this is hard to say for sure).

The Bottom Line

The study concludes that families are powerful coaches. When a household creates a safe, informed, and supportive environment, it helps people stop denying their HIV status and start accepting it.

While a supportive home doesn't magically solve every internal struggle (like feeling overwhelmed by the diagnosis or finding deep personal growth), it is a crucial first step. By reducing the urge to reject the diagnosis, these "competent" households help people stay on their treatment and live better with HIV.

In short: You can't always control the diagnosis, but the people you live with can control the atmosphere. A supportive home helps you stop fighting the truth and start living your life.

Technical Summary: Household HIV Competence and Illness Identity in HIV

Problem Statement
While antiretroviral therapy (ART) has transformed HIV into a manageable chronic condition, sub-optimal health outcomes persist in high-prevalence settings, including low retention rates and incomplete viral suppression. A critical, often overlooked factor in these outcomes is the psychological adaptation of people living with HIV (PLHIV). Specifically, the concept of illness identity—the extent to which an individual integrates HIV into their sense of self—is a determinant of treatment adherence, mental health, and overall well-being. Illness identity comprises four dimensions: engulfment (HIV dominating one's identity), rejection (HIV perceived as a threat and excluded from identity), acceptance (acknowledging HIV as part of the self alongside other roles), and enrichment (HIV facilitating personal growth).

Although social support is known to influence HIV management, there is a gap in understanding how the specific environment of the household shapes these identity dimensions. The study hypothesizes that Household HIV Competence—defined as a household's ability to create safe spaces for disclosure, foster solidarity, translate knowledge into behavior, and accept external support—plays a pivotal role in shaping whether PLHIV develop adaptive (acceptance, enrichment) or maladaptive (rejection, engulfment) illness identities.

Methodology

Study Design: This research utilized baseline data from the SINAKO cluster randomised controlled trial (RCT), conducted in five sub-districts of the Cape Metro, South Africa.
Participants: The sample consisted of 316 adults (aged 18–65) living with HIV. The cohort was predominantly female (83%) with a mean age of 35.49 years. Most participants (73%) had been diagnosed for more than six months.
Measures:
- Illness Identity: Assessed using an adapted Illness Identity Questionnaire (IIQ) with four subscales (engulfment, rejection, acceptance, enrichment). Reliability was confirmed (Cronbach's $\alpha$ > 0.70 for all subscales).
- Household HIV Competence: Measured via a 16-item index based on qualitative research, capturing attributes such as safe disclosure spaces, solidarity, knowledge translation, ownership of safe practices, and receptiveness to outside support. The index showed good reliability ( $\alpha$ = 0.80).
- Covariates: Gender, age, and illness duration were controlled for in analyses.
Statistical Analysis: The study employed multiple regression analyses with robust standard errors (accounting for heteroscedasticity and clinic-level clustering) to assess the association between household HIV competence and each of the four illness identity dimensions. Multivariate analysis of variance (MANOVA) was used to explore differences based on gender and illness duration.

Key Results

Demographic and Duration Effects:
- Gender: No statistically significant differences were found across any of the four illness identity dimensions.
- Illness Duration: Participants living with HIV for longer periods (>6 months) scored significantly higher on acceptance and enrichment compared to those recently diagnosed. No significant differences were found for rejection or engulfment based on duration.
- Age: A weak but significant negative association was found between age and rejection, indicating that older participants reported lower levels of rejection.
Household HIV Competence Associations:
- Acceptance: Higher household HIV competence was significantly associated with greater acceptance ( $\beta$ = 0.06, $p$ = 0.04).
- Rejection: Higher household HIV competence was significantly associated with lower rejection ( $\beta$ = -0.14, $p$ = 0.002).
- Engulfment and Enrichment: No statistically significant associations were found between household HIV competence and either engulfment ( $p$ = 0.13) or enrichment ( $p$ = 0.053).

Key Contributions
This study provides empirical evidence linking the structural and social environment of the household to the psychological construction of illness identity in PLHIV. It demonstrates that Household HIV Competence is uniquely and specifically linked to the dimensions of acceptance and rejection. By identifying that supportive household environments correlate with reduced rejection and increased acceptance, the study highlights the household as a critical "health-enabling" environment that can facilitate the integration of HIV into a person's identity.

Significance and Claims
The authors claim that these findings advance the illness identity literature by isolating the specific role of household competence in shaping adaptive versus maladaptive identity states. The study posits that:

Family Centrality: Recognizing the central role of families is vital for understanding the HIV illness experience.
Intervention Potential: Strengthening household HIV competence through targeted family support may serve as a mechanism to reduce rejection and promote acceptance.
Health Outcomes: Since rejection is linked to poorer health outcomes and acceptance to better self-management, fostering HIV-competent households has the potential to improve long-term health outcomes for PLHIV.

The paper maintains a modest tone regarding causality, acknowledging the cross-sectional nature of the data and the need for longitudinal research to confirm these relationships and explore the lack of association with engulfment and enrichment. It does not propose new experimental interventions but rather provides a rationale for existing and future family-focused interventions to support HIV competence.