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Table 1 Unadjusted associations between personal characteristics and otitis media episodesa for 355 infants at risk for developing asthma. (CT and MA, 1998 – 2000)

From: Association of surfactant protein A polymorphisms with otitis media in infants at risk for asthma

   Otitis Media Episodes
   0 1 2 3+
Characteristic n (%) % % % %
All subjects N (%) 355 97 (27.3) 137 (38.6) 87 (24.5) 34 (9.6)
Gender      
   Male 171 (48.2) 21.6 42.7 24.6 11.1
   Female 184 (51.8) 32.6 34.8 24.5 8.2
Ethnicity      
   White 226 (63.7) 23.4 38.0 28.8 9.7
   Black 48 (13.5) 41.7 37.5 14.6 6.2
   Hispanic 62 (17.5) 27.4 41.9 22.6 8.1
   Other 19 (5.4) 36.8 36.8 5.3 21.0
Maternal education      
   < HS 38 (10.7) 29.0 36.8 29.0 5.3
   Some college 179 (50.4) 29.0 39.7 20.1 11.2
   College degree 138 (38.9) 24.6 37.7 29.0 8.7
Maternal allergies      
   No 146 (41.1) 30.8 39.7 24.0 5.5
   Yes 209 (58.9) 24.9 37.8 24.9 12.4
Maternal asthma      
   No 246 (69.3) 30.1 38.2 22.0 9.8
   Yes 109 (30.7) 21.1 39.4 30.3 9.2
Daycare before 6 mo      
   No 279 (78.6) 29.0 39.4 23.3 8.2
   Yes 76 (21.4) 21.0 35.5 29.0 14.5
Breast feeding      
   No 113 (31.8) 27.4 40.7 22.1 9.7
   Yes 242 (68.2) 27.3 37.6 25.6 9.5
ETS      
   No 304 (86.6) 26.0 38.5 26.3 9.2
   Yes 47 (13.4) 34.0 40.4 14.9 10.6
Season of birth      
   Winter 75 (21.1) 28.0 37.3 26.7 8.0
   Spring 101 (28.4) 25.7 41.6 24.8 7.9
   Summer 97 (27.3) 26.8 39.2 27.8 6.2
   Fall 82 (23.1) 29.3 35.4 18.3 17.1
  1. aOtitis media determined by mother's report. More than one episode reported in a month or in the next consecutive month counted as a single episode.