TABLE 4.
Difference in nonreactivity rates by varying cutoff points of induration to DTH testing with various antigens among adolescent subjects by gendera
| Cutoff point (mm) | Tetanus antigenb
|
Mumps antigenb
|
Candida antigenb
|
||||||
|---|---|---|---|---|---|---|---|---|---|
| No. (%) nonreactive
|
RR (95% CI) | No. (%) nonreactive
|
RR (95% CI)c | No. (%) nonreactive
|
RR (95% CI) | ||||
| M | F | M | F | M | F | ||||
| 1 | 12 (40) | 41 (44) | 0.9 (0.5–1.5) | 16 (53) | 31 (33) | 1.6 (1.03–2.5) | 3 (10) | 11 (12) | 0.8 (0.3–2.8) |
| 2 | 12 (40) | 41 (44) | 0.9 (0.5–1.5) | 17 (57) | 32 (34) | 1.6 (1.1–2.5) | 3 (10) | 12 (13) | 0.8 (0.2–2.6) |
| 3 | 13 (43) | 47 (51) | 0.9 (0.5–1.4) | 19 (63) | 37 (40) | 1.6 (1.1–2.3) | 4 (13) | 13 (14) | 0.95 (0.3–2.7) |
| 4 | 15 (50) | 50 (54) | 0.9 (0.6–1.4) | 21 (70) | 45 (48) | 1.4 (1.1–2.0) | 4 (13) | 16 (17) | 0.8 (0.3–2.1) |
| 5 | 18 (60) | 51 (55) | 1.1 (0.8–1.5) | 22 (73) | 51 (55) | 1.3 (1.07–1.8) | 5 (17) | 18 (19) | 0.9 (0.4–2.1) |
a
A total of 30 males (M) and 93 females (F) received each antigen.
b
Subjects were more reactive to candida antigen than to tetanus antigen at all cutoff points (largest P for males and females, 0.049 and 0.0001, respectively). Subjects were more reactive to candida antigen than to mumps antigen at all cutoff points (largest P for males and females, 0.0023 and 0.0012, respectively).
c
Only for the mumps antigen were nonreactivity rates significantly different between males and females.