Table 1.

Characteristics of 742* Massachusetts Children Providing Nasopharyngeal Specimens

N (%)
Age (mo; n = 742)
 0 to <5109 (15)
 5 to <24270 (36)
 24 to <36104 (14)
 36+259 (35)
Sex distribution (n = 741)
  Female340 (46)
Race (n = 707)
  White548 (78)
  Black50 (7)
  Hispanic53 (8)
  Asian20 (3)
  Other36 (5)
Current (RTI) (n = 729)195 (27)
Current antibiotic use (n = 735)70 (10)
Antibiotic use within 2 mo (n = 742)294 (40)
Vaccination (Prevnar; n = 729)
  0 doses398 (55)
  1 dose113 (16)
  >1 dose218 (30)
Child care participant (n = 695)303 (44)
No. of siblings <6 y old (n = 701)
 0367 (52)
 1266 (38)
 >168 (10)
Roommates <6 y old (n = 676)140 (21)
Smoking in home (n = 700)209 (30)
Breastfed >2 mo (n = 679)274 (40)
Prematurity <36 wk (n = 729)29 (4)
  • * Ns for individual items vary because of age restrictions and missing data.

  • Includes viral upper respiratory tract infection, otitis media, sinusitis, and cough illness.

  • Doses must be completed 30 days before swab date.