Table 5
Comparison of individual birth factors within asthma discordant twin pairs by zygosity. Median differences with non-parametric 95% confidence intervals (CI)5-1
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↵5-1 The differences between MZ and DZ with Wilcoxon rank sum test were not significant.
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5-2 Median of the intrapair differences (affected minus unaffected).
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5-3 Wilcoxon signed rank test.
