TABLE 3.

Prevalence of the six most prevalent emm types among invasive GAS isolates from patients with the presence or absence of certain clinical manifestations

emm typeSTSSa (P = 0.027)Soft-tissue infection (P > 0.05)Erysipelasa (P = 0.014)Puerperal sepsisa,c (P < 0.001)
Present n (%)Absent n (%)Present n (%)Absent n (%)Present n (%)Absent n (%)Present n (%)Absent n (%)
emm119b (38)91* (21)13 (26)95 (22)17 (17)93 (24)0* (0)11* (22)
emm283* (6)87* (20)8 (16)82 (19)25* (26)62* (16)13* (46)4* (8)
emm310 (20)61 (14)11 (22)61 (14)7* (7)62* (16)1 (4)2 (4)
emm892 (4)43 (10)3 (6)39 (9)13 (13)31 (8)1 (4)5 (10)
emm123 (6)22 (5)4 (8)22 (5)6 (6)19 (5)0 (0)2 (4)
emm43 (6)17 (4)1 (2)22 (5)1 (1)19 (5)2 (7)4 (8)
Other10 (20)113 (26)10 (20)113 (26)29 (30)97 (25)11 (39)22 (44)
Total50 (100)434 (100)50 (100)434 (100)98 (100)386 (100)28 (100)50 (100)
  • a P < 0.05 in the overall chi-square test of the emm distribution between the groups with and without the clinical signs of the manifestation.

  • b P < 0.05 in the chi-square test for the specific emm type compared to the remaining emm types of isolates from patients with or without the clinical manifestation.

  • c Only female patients younger than 40 years old are included (n = 78).