Table 1.
Description of screening tools deployed.
Table 2.
Results of simplified visual inspection checklist.
Table 3.
Parameters of DD-SIMCA models and performances in terms of sensitivity and specificity.
Fig 1.
Ciprofloxacin DD-SIMCA acceptance plots (a priori model).
A: DD-SIMCA model with calibration and validation sets; B: DD-SIMCA model with test sets. For A and B, samples are considered as belonging to the target class if they are below the threshold in the left corner of the plot. This model is the initial a priori one before applying bootstrapping analysis.
Fig 2.
Metronidazole DD-SIMCA acceptance plots (a priori model).
A: DD-SIMCA model with calibration and validation sets; B: DD-SIMCA model with test sets. For A and B, samples are considered as belonging to the target class if they are below the threshold in the left corner of the plot. This model is the initial a priori one before applying bootstrap analysis.
Fig 3.
Ciprofloxacin DD-SIMCA new acceptance plots with optimization of the calibration set (a posteriori model).
A: DD-SIMCA model with calibration and validation sets; B: DD-SIMCA model with test set. For A and B, samples are considered as belonging to the target class if they are below the threshold in the left corner of the plot. This model is the initial a posteriori one before applying bootstrap.
Fig 4.
Metronidazole DD-SIMCA new acceptance plots with optimization of calibration set (a posteriori model).
A: DD-SIMCA model with calibration and validation sets; B: DD-SIMCA model with test sets. For A and B, samples are considered as belonging to the target class if they are below the threshold in the left corner of the plot. This model is the initial a posteriori one before applying bootstrap.
Fig 5.
Cards of samples tested for specificity determination.
A) testing of a metronidazole sample; B) testing of moxifloxacin sample; C) testing of levofloxacin sample; D) testing of norfloxacin sample; E) testing of ofloxacin sample. Lanes D and L were positive with blue and orange colors respectively for cards C (Levofloxacin sample), D (Norfloxacin samples), and E (Ofloxacin samples). The coloration of lane D for card B (Moxifloxacin) tends to green color.