Table 3 Association of demographic and diseases factors with the false positive results of DDIA
Variables | No. (%) of participants with the following DDIA results | Crude OR (95% CI) | P value | Adjusted OR (95% CI) | P value | |
|---|---|---|---|---|---|---|
| Â | Negative (n = 3196) | False positive (n = 2825 ) | Â | Â | Â | Â |
Demographic | Â | Â | Â | Â | Â | Â |
Sex | Â | Â | Â | Â | Â | Â |
Female | 1696 (53.07) | 1500 (51.89) | 1.00 | 0.36 | 1.00 | 0.27 |
male | 1466 (46.93) | 1359 (48.11) | 1.05(0.95-1.16) | Â | 1. 07 (0.95-1.19) | Â |
Age | Â | Â | Â | Â | Â | Â |
≤15 | 875 (27.38) | 420 (14.87) | 1.00 |  | 1.00 |  |
16-25 | 186 (5.82) | 143 (5.06) | 1.60 (1.25-2.05) | <0.001 | 1.38 (0.97-1.97) | 0.08 |
26-35 | 230 (7.20) | 330 (11.68) | 2.99 (2.44-3.67) | <0.001 | 2.21 (1.47-3.33) | <0.001 |
36-45 | 609 (19.06) | 828 (29.31) | 2.83 (2.42-3.31) | <0.001 | 1.85 (1.26-2.74) | <0.05 |
46-55 | 616 (19.27) | 601 (21.27) | 2.03 (1.73-2.39) | <0.001 | 1.22 (0.82-1.82) | 0.32 |
56-65 | 680 (21.28) | 503 (17.81) | 1.54 (1.31-1.82) | <0.001 | 0.93 (0.63-1.38) | 0.72 |
Occupation | Â | Â | Â | Â | Â | Â |
farmer | 1943 (60.79) | 1874 (66.34) | 1.00 | Â | 1.00 | Â |
fisherman or boatman | 135 (4.22) | 290 (10.27) | 2.23 (1.80-2.76) | <0.001 | 1.75 (1.40-2.17) | <0.001 |
student | 888 (27.78) | 442 (15.65) | 0.52 (0.45-0.59) | <0.001 | 0.97 (0.67-1.40) | 0.87 |
others | 230 (7.20) | 219 (7.75) | 0.99 (0.81-1.20) | 0.90 | 0.98 (0.79-1.20) | 0.82 |
Education | Â | Â | Â | Â | Â | Â |
illiteracy | 556 (17.40) | 506 (17.91) | 1.00 | Â | 1.00 | Â |
< high school | 2454 (76.78) | 2125 (75.22) | 0.95 (0.83-1.09) | 0.47 | 0.98 (0.84-1.15) | 0.81 |
high school | 76 (2.38) | 81 (2.87) | 1.17 (0.84-1.64) | 0.36 | 1.05 (0.73-1.53) | 0.79 |
college and above | 110 (3.44) | 113 (4.00) | 1.13 (0.85-1.51) | 0.41 | 1.36 (0.99-1.86) | 0.06 |
Disease factors | ||||||
History of schistosome infection | ||||||
No | 1614 (50.50) | 783 (27.72) | 1.00 | <0.001 | 1.00 | <0.001 |
Yes | 1582 (49.50) | 2042 (72.28) | 2.70 (2.42-3.01) | Â | 2.47 (2.19-2.79) | Â |
Other helminthes infection | ||||||
no | 3053(95.53) | 2711 (95.96) | 1.00 | 0.40 | 1.00 | 0.50 |
yes | 143(4.47) | 114 (4.04) | 0.90 (0.70-1.15) | Â | 0.91 (0.70-1.19) | Â |