The bar chart illustrates the distribution of children's sex by maternal ART unknown status (N = 4951) over the period December 17, 2009 – December 5, 2024. The majority of children have mothers with a known ART status, with 2451 females and 2463 males recorded under this category. In contrast, a small proportion falls under the unknown ART status, with 16 females and 21 males affected. This suggests that ART treatment records for mothers are well-documented, supporting effective HIV management and prevention efforts for children.