Independent variable Univariate p value Multivariate p value
Odd ratio (95% CI) Adjusted Odd ratio (95% CI)
Maternal age
1.022 (0.980 - 1.067)
0.304
Log10 maternal weight
6.821 (0.326 - 142.890)
0.216
Log10 maternal height
0.000 (0.000 - 35.983)
0.152
Log10 maternal body mass index
23.257 (0.943 - 583.582)
0.054
9.593 (0.354 - 259.648)
0.179
Smoking
2.035 (0.538 - 7.701)
0.295
Nulliparity
2.842 (1.807- 4.469)
<0.001
3.212 (2.009 - 5.136)
<0.001*
Postdate
1.024 (0.615 -1.706)
0.926
Diabetes
2.842 (1.212 - 6.665)
0.016
2.707 (1.091 - 6.718)
0.032*
Hypertension
0.793 (0.235 - 2.680)
0.709
Large or small for gestational age
1.590 (0.819 - 3.087)
0.170
Decrease FM / Suboptimal CTG
0.782 (0.379 - 1.613)
0.505
Estimated foetal weight z-score
1.189 (1.024 - 1.380)
0.023
1.227 (1.044 - 1.444)
0.013*
Umbilical artery PI z-score
0.828 (0.661 - 1.061)
0.142
Middle cerebral artery PI z-score
1.173 (0.967 - 1.424
0.105
Cerebroplacental ratio z-score
0.955 (0.776 - 1.174)
0.659
Mean uterine artery PI z-score
0.960 (0.832 - 1.107)
0.573
Log10 short term variability
0.865 (0.180 - 4.151)
0.857
Dawes-Redman criteria not met
0.935 (0.456 - 1.915)
0.853