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Table 2 Comparison of biofilm production between specific gene-positive and gene-negative strains in each group

From: Investigation of biofilm production and its association with genetic and phenotypic characteristics of OM (osteomyelitis) and non-OM orthopedic Staphylococcus aureus

Strain traitTotal (n = 137)OM (n = 60)Non-OM (n = 77)
Adhesion-associated genes, n (%), P valuea
 bbp (+)12 (8.8), 0.67010 (16.7), 0.3302 (2.6), 0.259
 cna (+)47 (34.3), 0.22321 (35.0), 0.67026 (33.8), 0.036
 ebps (+)40 (29.2), 0.55824 (40.0), 0.21416 (20.8), 0.552
 fib (+)124 (90.5), 0.00653 (88.3), 0.12071 (92.2), 0.014
 fnbA (+)25 (18.2), 0.7378 (13.3), 0.43317 (22.1), 0.810
 fnbB (+)36 (26.3), 0.40114 (23.3), 0.83222 (28.6), 0.182
 icaA (+)136 (99.3), -59 (98.3), -77 (100.0), -
Enterotoxin genes, n (%), P valuea
 sea (+)11 (8.0), 0.8967 (11.7), 0.6674 (5.2), 0.680
 seb (+)27 (19.7), 0.23413 (21.7), 0.63414 (18.2), 0.032
 sec (+)16 (11.7), 0.1048 (13.3), 0.0838 (10.4), 0.558
 sed (+)19 (13.9), 0.0524 (6.7), 0.78515 (19.5), 0.015
 see (+)2 (1.5), 0.8920 (0), -2 (2.6), 0.860
 seg (+)8 (5.8), 0.6775 (8.3), 0.5663 (3.9), 0.159
 seh (+)4 (2.9), 0.3280 (0), -4 (5.2), 0.342
 sei (+)26 (19.0), 0.00414 (23.3), 0.00212 (15.6), 0.311
 sej (+)9 (6.6), 0.2374 (6.7), 0.6575 (6.5), 0.250
 sem (+)29 (21.2), 0.00915 (25.0), 0.03914 (18.2), 0.112
 sen (+)21 (15.3), 0.0669 (15.0), 0.35612 (15.6), 0.121
 seo (+)32 (23.4), 0.00219 (31.7), 0.00513 (16.9), 0.123
Other toxin genes, n (%), P valuea
 hla (+)132 (96.4), 0.07455 (91.7), 0.07377 (100.0), -
 hlb (+)45 (32.8), 0.19418 (30.0), 0.36327 (35.1), 0.446
 hlg (+)127 (92.7), 0.64058 (96.7), 0.91669 (89.6), 0.596
 hlgv (+)127 (92.7), 0.00555 (91.7), 0.07372 (93.5), 0.035
 lukED (+)90 (65.7), < 0.00143 (71.7), 0.36447 (61.0), < 0.001
 pvl (+)26 (19.0), 0.31917 (28.3), 0.5899 (11.7), 0.419
 edin (+)8 (5.8), 0.8834 (6.7), 0.5134 (5.2), 0.393
 eta (+)5 (3.6), 0.4362 (3.3), 0.3863 (3.9), 0.016
 tst (+)5 (3.6), 0.8213 (5.0), 0.8472 (2.6), 0.863
  1. Significant differences are in italics
  2. aBy Mann–Whitney U test, comparing biofilm production (OD492 values) between specific gene-positive and gene-negative strains in each group. Genes with carriage rate of 100% (eno,clfA,clfB,icaD,hld and psmα) or 0% (lukM and etb) were not listed