Site | No of nets (no tested in bio-assay) | Deltamethrin concentration (mg/m2) (by XRF) Mean (SD) | No (%) of nets with <10 mg/m2deltamethrin | Manufacturer’s reported batch mean deltamethrin concentration (MRBMC) (mg/m2) | Difference between field XRF and MRBMC (%) | |
---|---|---|---|---|---|---|
A | 25 (4) | 64.7 (13.3) | 0 | 59.9 | 8.0 | |
B | 25 (4) | 67.6 (10.8) | 0 | 59.9 | 12.9 | |
C | 25 (4) | 69.7 (14.3) | 0 | 59.7 | 16.8 | |
D | 25 (4) | 74.8 (12.5) | 0 | 59.7 | 25.3 | |
E | 25 (4) | 58.0 (14.3) | 0 | 60.0 | -3.3 | |
F | 25 (4) | 58.1 (20.0) | 1 (4) | 60.0 | -3.2 | |
G | 5 (0) | 76.9 (5.6) | 0 | 58.9 | 30.6 | |
H | 14 (0) | 72.9 (9.5) | 0 | 58.9 | 23.8 | |
J | 20 (4) | 63.8 (8.6) | 0 | 60.9 | 4.8 | |
3–6 months | 189 (28) | 66.2 (14.6) | 1 (0.5) | 59.8* | 10.8 | |
K | 20 (4) | 53.2 (15.9) | 0 | 59.9 | -11.2 | |
L | 20 (4) | 38.1 (19.9) | 1 (5) | 59.1 | -35.5 | |
M | 20 (4) | 58.5 (14.7) | 0 | 59.1 | -1.0 | |
N | 20 (4) | 41.6 (19.3) | 1 (5) | 59.7 | -30.3 | |
P | 20 (4) | 46.9 (19.9) | 0 | 57.7 | -18.7 | |
Q | 20 (4) | 48.1 (19.0) | 0 | 59.1 | -18.6 | |
R | 20 (4) | 30.7 (26.8) | 6 (30) | 60.0 | -48.8 | |
S | 20 (4) | 50.4 (26.0) | 1 (5) | 61.0 | -17.4 | |
T | 20 (4) | 47.1 (18.0) | 0 | 58.9 | -20.0 | |
U | 20 (4) | 41.6 (19.3) | 1 (5) | 59.1 | -29.6 | |
J | 20 (4) | 28.7 (14.5) | 2 (10) | 60.9 | -52.9 | |
14-20 months | 220 (44) | 44.1 (21.2) | 12 (5.5) | 59.5* | -25.9 | |
K | 20 (4) | 40.0 (19.3) | 2 (10) | 59.9 | -33.2 | |
L | 20 (4) | 46.6 (13.9) | 0 | 59.1 | -21.2 | |
M | 20 (4) | 54.3 (21.1) | 0 | 59.1 | -8.1 | |
N | 20 (4) | 34.1 (14.7) | 0 | 59.7 | -42.9 | |
P | 20 (4) | 35.5 (16.6) | 1 (5) | 57.7 | -38.5 | |
Q | 20 (4) | 42.0 (18.7) | 0 | 59.1 | -28.9 | |
R | 20 (4) | 32.5 (18.0) | 4 (20) | 60.0 | -45.8 | |
S | 20 (4) | 45.3 (20.7) | 0 | 61.0 | -25.7 | |
T | 20 (4) | 38.0 (14.0) | 0 | 58.9 | -35.5 | |
U | 20 (4) | 42.4 (23.2) | 1 (5) | 59.1 | -28.3 | |
26-32 months | 200 (40) | 41.1 (18.9) | 8 (4.0) | 59.4* | -30.8 |