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Table 1 Main characteristics of 423 children and adolescents with asthma, by pneumococcal carriage

From: Streptococcus pneumoniae colonisation in children and adolescents with asthma: impact of the heptavalent pneumococcal conjugate vaccine and evaluation of potential effect of thirteen-valent pneumococcal conjugate vaccine

Characteristic All children (n = 423) n (%) Carriers (n = 192) n (%) Non-carriers (n = 231) n (%) p-value
Age
 <10 176 (41.6) 93 (48.4) 83 (35.9)  
 10–14 207 (48.9) 90 (46.9) 117 (50.6)  
 ≥15 40 (9.5) 9 (4.7) 31 (13.4) <0.001
Gender
 Male 300 (70.9) 136 (70.8) 164 (71.0)  
 Female 123 (29.1) 56 (29.2) 67 (29.0) 0.97
Ethnicity
 Caucasian 372 (87.9) 170 (88.5) 202 (87.5)  
 Non-Caucasian 51 (12.1) 22 (11.5) 29 (12.5) 0.73
No. of siblingsa
 0 100 (23.8) 46 (24.2) 54 (23.5)  
 1 217 (51.7) 99 (52.1) 118 (52.3)  
 2 82 (19.5) 37 (19.5) 45 (19.6)  
 ≥3 21 (5.0) 8 (4.2) 13 (5.6) 0.63
Parental smoking habit
 Both non-smokers 276 (65.2) 119 (62.0) 157 (68.0)  
 At least one smoker 147 (34.8) 73 (38.0) 74 (32.0) 0.20
Gestational age (weeks)a
 <37 49 (11.7) 13 (6.8) 36 (15.7)  
 ≥37 370 (88.3) 177 (93.2) 193 (84.3) 0.005
Birth weight (g)a
 <2500 39 (9.3) 13 (6.8) 26 (11.5)  
 ≥2500 378 (90.7) 177 (93.2) 201 (88.5) 0.11
Exclusive breastfeedinga
 No 139 (32.9) 56 (29.3) 83 (35.9)  
 Yes 283 (67.1) 135 (70.7) 148 (64.1) 0.15
Allergic sensitisation
 No 59 (14.0) 26 (13.5) 33 (14.3)  
 Yes 364 (86.0) 166 (86.5) 198 (85.7) 0.83
Meningococcal vaccination
 No 227 (53.7) 99 (51.6) 128 (55.4)  
 Yes 196 (46.3) 93 (48.4) 103 (44.6) 0.43
Flu vaccination during current seasona
 No 351 (83.0) 162 (84.4) 189 (81.8)  
 Yes 72 (17.0) 30 (15.6) 42 (18.2) 0.49
  1. aSome missing values
  2. Bold data represent significant differences