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 percentile
25th–50th
50th–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/asthma
33.0 (976)
34.8 (1076)
34.2 (1007)
37.5 (1199)
0.002
0.001
Allergic rhinitis
52.3 (1550)
54.4 (1680)
54.1 (1594)
55.4 (1768)
0.102
0.025
Eczema
15.6 (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/asthma
33.0 (1129)
36.1 (1202)
35.1 (1104)
35.4 (869)
0.050
0.084
Allergic rhinitis
51.6 (1764)
55.2 (1834)
55.4 (1745)
54.1 (1328)
0.007
0.025
Eczema
16.5 (555)
16.9 (550)
17.3 (537)
17.8 (428)
0.636
0.194
† 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.
