TABLE 2.
Timing of immunizations and blood sampling
| Characteristic | Value for infantsa |
|
|---|---|---|
| Term | Preterm | |
| Age, first samplingb | 61 (56-71) | 54 (28-78) |
| Age, first PCV7 | 61 (56-71) | 61 (50-109) |
| Age, second PCV7b | 89.5 (81-104) | 96 (81-246) |
| Age, third PCV7b | 118 (112-132) | 138 (109-308) |
| Age, second samplingb | 147 (139-172) | 182 (145-337) |
| Interval between first and third PCV7 | 56 (55-70) | 73 (54-243) |
| Interval between third PCV7 and second samplingb | 28 (21-51) | 35 (14-189) |
| Age at boosterb | 342 (325-361) | 416.5 (193-617) |
| Age, postbooster samplingb | 375 (354-402) | 463.5 (246-665) |
| Interval between booster and sampling | 32 (27-56) | 38.5 (14-141) |
| Age, 12-mo nonboosted sampling | 373 (361-420) | 402 (350-526) |
a
Values shown are the median numbers (ranges) of days.
b
P < 0.05.