TABLE 2.

Sources of clinical isolates of H. influenzae

CharacteristicTotal no. (%) of isolatesNo. (%) with susceptibility to AMPP valuea
SusceptibleIntermediateResistant
Total264161 (61.0)37 (14.0)66 (25.0)
Gender
    Male143 (54.2)91 (63.6)16 (11.2)36 (25.2)NS
    Female121 (45.8)70 (57.9)21 (17.4)30 (24.8)
Age (yr)
    0-2108 (40.9)56 (51.9)19 (17.6)33 (30.6)NS
    3-538 (14.4)27 (71.1)5 (13.2)6 (15.8)NS
    6-1219 (7.2)12 (63.2)1 (5.3)6 (31.6)NS
    13-2015 (5.7)10 (66.7)1 (6.7)4 (26.7)NS
    21-5072 (27.3)48 (66.7)9 (12.5)15 (20.8)NS
    ≥5112 (4.5)8 (66.7)2 (16.7)2 (16.7)NS
Specimens type
    Middle ear fluid66 (25.0)34 (51.5)14 (21.2)18 (27.3)
    Nasopharyngeal secretion77 (29.2)46 (59.7)10 (13.0)21 (27.3)NS
    Nasal discharge/sinus aspirate63 (23.9)38 (60.3)9 (14.3)16 (25.4)NS
    Tonsil swab58 (22.0)43 (74.1)4 (6.9)7 (19.0)NS
Type of clinic
    University medical center37 (14.0)23 (62.2)7 (18.9)11 (18.9)NS
    General hospital84 (31.8)49 (58.3)14 (16.7)21 (25.0)NS
    Private clinic143 (54.2)89 (62.2)16 (11.2)38 (26.6)NS
  • a NS, nonsignificant.