Table 2.

Median [interquartile range] IgG levels to four antigens at each visit grouped by PcP status as first AIDS-defining illness (between visit 3 and 4).

Antigen	Visit 1	Visit 2	Visit 3	Visit 4	Visit 5	Visit 6
MsgC1
PcP	13.0 [2.3–46.2]	8.3 [2.9–41.8]	11.2 [1.7–41.2]	25.3 [2.3–56.3]	21.4 [1.7–41.7]	19.6 [1.7–42.0]
No PcP	21.1 [3.2–43.1]	18.2 [3.8–40.7]	15.2 [3.6–39.0]	12.1 [4.3–31.2]	10.6 [3.3–39.6]	12.7 [2.2–35.1]
MsgC3
PcP	13.1 [1–56.4]	18.3 [1–55.3]	16.4 [2.2–47.7]	11.6 [1–86.0]	14.8 [1–70.1]	17.6 [2.5–72.4]
No PcP	3.2 [1–41.7]	3.7 [1–50.1]	5.7 [1–49.0]	6.9 [1–41.8]	8.1 [1–39.7]	8.8 [1–46.4]
MsgC8
PcP	18.6 [4.1–67.0]	18.9 [2.1–58.1]	17.2 [4.5–79.2]	43.8 [5.8–96.7]	31.5 [1–76.2]	26.1 [3.4–74.7]
No PcP	20.6 [1–63.4]	21.3 [2.5–67.3]	14.9 [1–64.3]	15.3 [1–84.4]	15.8 [1–76.1]	12.1 [1–81.8]
MsgC9
PcP	29.7 [7.8–80.5]	32.8 [7.9–80.0]	36.7 [11.1–93.6]	50.2 [4.9–123.2]	37.6 [4.7–112.1]	48.4 [10.1–105.7]
No PcP	18.9 [1–61.1]	28.5 [2.3–72.4]	26.5 [2.0–64.2]	22.2 [2.6–50.9]*	14.4 [2.8–52.4]	22.1 [3.5–63.1]

^*Wilcoxon rank-sum test – p = 0.05

PcP = Pneumocystis pneumonia