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Table 1 Vaccinated and comparison group characteristics

From: Pneumococcal vaccination and otitis media in Australian Aboriginal infants: comparison of two birth cohorts before and after introduction of vaccination

Participant Characteristic Vaccinated
N = 97
Comparison
N = 51
Mean Difference or Odds Ratio (95% CI)
Sex (% Male) 45 (46%) 30 (59%) 0.61 (0.29, 1.27)
Birth weight (g) 2956 (n = 87) 3159 (n = 49) -203 (-409, 3)
Maternal age (years) 24.2 (n = 95) 23.0 (n = 49) 1.2 (-0.8, 3.1)
  1. Birth weight was missing for 10 vaccinees and 2 comparison participants. Maternal age was missing for 2 vaccinees and 2 comparison participants.