Table 2. Demographic characteristics and CPF exposure and effect biomarkers in a sample of 21 Egyptian adolescent applicators and 20 non-applicators.
| Characteristic | Range | Mean (SD) | Median (IQR) | Group comparison |
|---|---|---|---|---|
| Age (yrs) | t(39)=0.04, p=0.97 | |||
| Non-applicator | 12–18 | 15.5 (1.5) | 16 (15–16) | |
| Applicator | 12–18 | 15.5 (2.1) | 15 (14–18) | |
| Education (yrs) | t(39)=1.34, p=0.19 | |||
| Non-applicator | 6–12 | 9.5 (1.5) | 10 (9–10) | |
| Applicator | 6–11 | 8.9 (1.6) | 9 (8–10) | |
| Urine TCPy (μg/g creatinine) | t(39)=4.55, p<0.001* | |||
| Non-applicator | 2.4–64.9 | 9.4 (14.3) | 4.8 (3.2–8.9) | |
| Applicator | 4.9–125 | 33.6 (36.6) | 17.5 (11.1–36.8) | |
| Plasma BuChE (U/ml)a | t(30)=1.05, p=0.30 | |||
| Non-applicator | 1.1–3.0 | 1.7 (0.4) | 1.6 (1.5–1.8) | |
| Applicator | 0.1–2.7 | 1.5 (0.8) | 1.7 (1.1–1.9) | |
| RBC Ache (U/g Hgb)b | t(30)=1.54, p=0.13 | |||
| Non-Applicator | 23.5–30.8 | 26.7 (1.9) | 26.6 (25.2–27.9) | |
| Applicator | 17.7–29.8 | 25.4 (3.6) | 26.3 (23.1–28.5) |
IQR Interquartile range
a
Based on log-transformed data; GM=5.8 for non-applicators and GM=21.1 for applicators
b
Based on modified t-test with unequal variances