Which factor would LEAST affect wound healing?

When considering factors that affect wound healing, systemic conditions and medications play crucial roles. Corticosteroids can impair the inflammatory response and epithelial proliferation, contributing to delayed wound healing. Diabetes mellitus is well-known for its detrimental effects on wound healing due to factors such as poor circulation, neuropathy, and impaired immune function. HIV with a low CD4 count directly compromises the immune system, significantly hindering the body's ability to heal wounds.

In contrast, while hyperlipidemia can correlate with cardiovascular diseases that may indirectly impact wound healing, it does not have a direct and immediate influence on the healing process compared to the other factors listed. Therefore, among the options presented, hyperlipidemia is the factor that would least affect wound healing, as it does not impair essential physiological mechanisms as overtly as the other conditions do.