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Table 2 Bacteriological findings in 169 of the 216 patients included, and comparison according to the consumption of anti-inflammatory drugs prior to admission

From: Impact of anti-inflammatory drug consumption in peritonsillar abscesses: a retrospective cohort study

  Total population No AID AID AID vs. no AID NSAID NSAID vs. no AIDa Corticosteroids Corticosteroids vs. no AIDa NAIDS vs. corticosteroidsa
p-value p-value p-value p-value
Bacteriological analysis 169 (78.2 %) 65 (73.0 %) 104 (81.9 %) 0.125 65 (85.5 %) 0.268 55 (82.1 %) 0.588 0.632
Streptococcus spp 110 (65.5 %) 44 (67.7 %) 66 (64.1 %) 0.631 40 (62.5 %) 0.424 37 (67.3 %) 0.914 0.548
   S. pyogenes 30 (17.9 %) 17 (26.2 %) 13 (12.6 %) 0.026 10 (15.6 %) 0.512 3 (5.5 %) 0.022 0.131
   S. milleri group 55 (32.7 %) 19 (29.2 %) 36 (35.0 %) 0.442 19 (29.7 %) 0.452 25 (45.5 %) 0.136 0.040
Staphylococcus aureus 6 (3.6 %) 4 (6.2 %) 2 (1.9 %) 0.207 1 (1.6 %) 0.393 1 (1.8 %) 0.648 1.000
Haemophilus spp 4 (2.4 %) 2 (3.1 %) 2 (1.9 %) 0.641 1 (1.6 %) 1.000 1 (1.8 %) 1.000 1.000
 Anaerobes 66 (39.3 %) 19 (29.2 %) 47 (45.6 %) 0.034 26 (40.6 %) 0.070 25 (45.5 %) 0.012 0.457
   Fusobacterium spp 43 (25.6 %) 11 (16.9 %) 32 (31.1 %) 0.041 18 (28.1 %) 0.043 16 (29.1 %) 0.028 0.802
   Prevotella spp 11 (6.5 %) 2 (3.1 %) 9 (8.7 %) 0.206 6 (9.4 %) 0.110 4 (7.3 %) 0.361 0.726
 Plurimicrobial infection 61 (36.1 %) 20 (30.8 %) 41 (32.5 %) 0.254 24 (36.9 %) 0.658 24 (43.6 %) 0.186 0.395
  1. Data are presented as n (%). For the calculation of each percentage, the number of missing values was excluded from the denominator. Groups were compared by non-parametric tests (chi-square and Fisher exact tests), as appropriate
  2. AID anti-inflammatory drug, NSAID non-steroidal anti-inflammatory drug, vs. versus
  3. aExcluding patients receiving both NSAIDs and corticosteroids