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Risk haplotype distribution in BPD patients and controls.
| Haplotype 114Sa | Patients (freq.) | Controls (freq.) | P value | Odds Ratio (95% Confidence Interval) | |
| Males | 6 (0.14) | 0 (0.00) | 0.01 | 12.64 (0.69–232.88) b | |
| Female | 8 (0.08) | 6 (0.06) | 0.72 | 1.22 (0.41–3.67) | |
aPower for the 114S haplotype distribution is about 74.9% with α = 0.05.
bSince odds ratio is undefined with zero cell, adding 0.5 to each cell was used for calculate the odds ratio for 114S haplotype.
