Characteristic | PCV7 | PCV13 | P value |
---|---|---|---|
Number of infants, n (%) | 20 (48.8%) | 21 (51.2%) | |
Gender (male), n (%) | 10 (50%) | 9 (42.9%) | 0.76# |
Season of birth, n (%) | 0.03 # | ||
Winter | 2 (10%) | 8 (38.1%) | |
Spring | 4 (20%) | 8 (38.1%) | |
Summer | 7 (35%) | 3 (14.3%) | |
Fall | 7 (35%) | 2 (9.5%) | |
aParental education, n (%) | 0.51# | ||
Low | 2 (10%) | 4 (19.1%) | |
Middle | 6 (30%) | 8 (38.1%) | |
High | 12 (60%) | 9 (42.9%) | |
bHA nutrition, n (%) | 4 (20%) | 4 (19.1%) | 0.94# |
C-section, n (%) | 3 (15%) | 3 (14.3%) | 0.95# |
cChildcare, n (%) | 5 (25%) | 5 (23.8%) | 0.93# |
Smoking during pregnancy, n (%) | 2 (10%) | 1 (4.8%) | 0.52# |
dSmoking exposure in the 1st year, n (%) | 2 (10%) | 5 (23.8%) | 0.24# |
eMaternal atopy, n (%) | 6 (30%) | 4 (19.1%) | 0.41# |
Siblings, n (%) | 0.18# | ||
0 | 3 (15%) | 5 (23.8%) | |
1 | 9 (45%) | 13 (61.9%) | |
≥2 | 8 (40%) | 3 (14.3%) | |
Gestational age at birth [weeks], mean (±SD) | 39.8 (±1.2) | 39.4 (±2.1) | 0.45$ |
Length at birth [cm], mean (±SD) | 49.6 (±1.7) | 49.7 (±2.0) | 0.78$ |
Weight at birth [g], mean (±SD) | 3403.5 (±334.2) | 3343.3 (±581.2) | 0.69$ |
Breastfeeding duration [months], mean (±SD) | 8.6 (±2.7) | 9.3 (±2.9) | 0.44$ |
fAge at PCV administration [weeks], mean (±SD) | |||
1st dose | 9.6 (±1.8) | 10.6 (±4.8) | 0.34$ |
2nd dose | 18.9 (±2.4) | 18.9 (±5.5) | 0.97$ |
gHib administration, n, mean age [weeks] (±SD) | |||
1st dose | 20, 9.6 (±1.8) | 21, 9.6 (±1.1) | 0.96$ |
2nd dose | 20, 18.9 (±2.4) | 21, 18.2 (±1.1) | 0.28$ |
3rd dose | 18, 27.1 (±1.9) | 21, 27.2 (±1.6) | 0.87$ |
Respiratory symptoms, n, mean per infant (±SD) | |||
Total | 127, 6.4 (±2.7) | 134, 6.4 (±3.1) | 0.97$ |
Rhinitis | 99, 5.0 (±2.4) | 125, 6.0 (±2.9) | 0.24$ |
hURTI | 71, 3.6 (±2.2) | 76, 3.6 (±2.4) | 0.92$ |
iLRTI | 7, 0.35 (±0.8) | 21, 1.0 (±1.2) | 0.05 $ |
Wheezing | 2, 0.1 (±0.3) | 6, 0.3 (±0.7) | 0.29$ |