TABLE 1

Baseline demographics, antibiotic status, nasal wash volume returned, and evidence of pneumococcal disease investigation results for patients with lower respiratory tract infection and age- and gender-matched hospitalized controls

ParameterResults for:P
LRTIa patients (n = 19)Controls(n = 19)
Male gender (n [%])9 (47.4)9 (47.4)1.000b
Age (mean ± SD) (yr)64.47 ± 15.7864.58 ± 14.500.954c
Smoker/ex-smoker (n [%])15 (78.9)10 (52.6)0.170d
23PPVe (n [%])7 (36.8)8 (42.1)0.740b
Contact with children (n [%])10 (52.6)12 (63.2)0.511b
Antibiotics at time of recruitment (n [%])19 (100)3 (15.8)0.0001d
Nasal wash vol returned (mean ± SD) (ml)10.14 ± 3.1410.36 ± 4.830.855c
Evidence of pneumococcal disease: BinaxNOW urine test positive (n [%])2 (10.5)0 (0)0.486d
Evidence of pneumococcal disease: blood or sputum culture positive (n [%])0 (0)NAfNA
  • a LRTI, lower respiratory tract infection.

  • b Chi-square test.

  • c Mann-Whitney U test.

  • d Fisher's exact test.

  • e 23PPV, 23-valent pneumococcal polysaccharide vaccine (Pneumovax).

  • f NA, not applicable.