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Table 1 Characteristics of study population

From: Genotypic and phenotypic characteristics of Streptococcus pneumoniae from community-acquired pneumonia patients and healthy asymptomatic participants in Sichuan province, China

Characteristics Asymptomatic participants overall (n = 598) CAP patients overall (n = 600) P value Asymptomatic carriers (n = 52) CAP carriers (n = 31) P value
Age, median (IQR) 27.5 (10, 58) 28.5 (5, 54) 0.727 5 (4, 8) 67 (45, 73) 0.000
Age group (n, %)    0.727    0.000
 ≤ 5 years 158 (26.4) 107 (17.8) 33 (63.5) 7 (22.6)
 6–14 years 73 (12.2) 97 (16.2) 13 (25.0) 8 (25.8)
 15–24 years 57 (9.5) 85 (14.2) 4 (7.7) 1 (3.2)
 25–44 years 103 (17.2) 52 (8.7) 0 (0.0) 3 (9.7)
 45–64 years 109 (18.2) 179 (29.8) 1 (1.9) 4 (12.9)
 > 65 years 98 (16.5) 80 (13.3) 1 (1.9) 8 (25.8)
Gender (n, %)    0.088    0.797
 Male 368 (61.5) 387 (64.5) 27 (51.9) 17 (54.8)
 Female 230 (38.5) 213 (35.5) 25 (48.1) 14 (45.2)