CD4 and AIDS: In addition, HIV/AIDS patients at II (BII = −105.74,95% CI:−139.09, −72.40, P < 0.001), III (BIII = −215.59, 95% CI:−246.81, −184.36, P < 0.001), and IV (BIV = −254.53, 95% CI−298.82, −210.24, P < 0.001) clinical stages experienced a lower CD4 cell count.