Journal of Immunology Research / 2012 / Article / Tab 3

Research Article

Feeding Bottles Usage and the Prevalence of Childhood Allergy and Asthma

Table 3

The association between the length of using feeding bottles or pacifiers and childhood allergic and respiratory morbidities.

% ( )Quartile of using length for feeding bottles or pacifiers value value for trend
<25th percentile25th–50th50th–75th>75th percentile

Length of using feeding bottle
Range of quartile Never used and stopped use before 2yrs, 24.3 (2979)Stopped use between 2 and 3yrs, 25.3 (3103)Stopped use between 3 and 5yrs, 24.2 (2960)Used until now, 26.2 (3205)
  Wheezing/asthma33.0 (976)34.8 (1076)34.2 (1007)37.5 (1199)0.0020.001
  Allergic rhinitis52.3 (1550)54.4 (1680)54.1 (1594)55.4 (1768)0.1020.025
  Eczema15.6 (452)17.1 (516)16.1 (467)19.7 (620)<0.001<0.001
Length of using pacifiers
Range of quartile Never used, 27.7 (3433)Stopped use before 1yr, 27.0 (3345)Stopped use between 1 and 2yrs, 25.5 (3162)Stopped use between 2 and 6yrs as well as used until now, 19.9 (2465)
  Wheezing/asthma33.0 (1129)36.1 (1202)35.1 (1104)35.4 (869)0.0500.084
  Allergic rhinitis51.6 (1764)55.2 (1834)55.4 (1745)54.1 (1328)0.0070.025
  Eczema16.5 (555)16.9 (550)17.3 (537)17.8 (428)0.6360.194

values were calculated by Pearson Chi-Square to compare the difference of percentages among four quartile groups.
values for trend were calculated by Chi-Square of Ordinal by Ordinal to examine the trend of correlation between disease rates and length of use.

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