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Table 5 Statistic comparison of traditional method and WSEA on human feces samples

From: Optimization of an efficient solid-phase enrichment medium for Salmonella detection using response surface methodology

WCDC group # of samples Traditional method Whole-sample solid-phase enrichment assay (WSEA)
Positive # (rate) Positive #/rate 18 h 21 h 24 h
Dark spots # (rate) Positive # (proportion) Dark spots # (rate) Positive # (proportion) Dark spots # (rate) Positive # (proportion)
1 1502 6 (0.40%) 31 (2.06%) 242 (16.11%) 16 (51.61%) 525 (34.95%) 12 (38.71%) 989 (65.85%) 3 (9.68%)
2 1284 5 (0.39%) 36 (2.8%) 179 (13.94%) 19 (52.78%) 432 (33.64%) 14 (38.89%) 871 (67.83%) 3 (8.33%)
3 1220 6 (0.49%) 18 (1.48%) 123 (10.08%) 9 (50%) 354 (29.02%) 7 (38.89%) 782 (64.10%) 2 (11.11%)
TOTAL 4006 17 (0.42%) 85 (2.12%) 544 (13.58%) 43 (50.59%) 1311 (32.73%) 33 (38.82%) 2642 (65.95%) 8 (9.41%)