Cohort of women in the fertile reproductive life stage at the SCI event
Descriptive statistics were provided for demographics and injury characteristics and grouped by reproductive behaviour. Univariate and multivariable logistic regression analyses were performed to calculate unadjusted and adjusted odds ratios (OR) of the likelihood of becoming a mother after the SCI event with selected predictive variables: age at injury, level of education, injury level and completeness, and birth country. To account for item nonresponse (i.e., missing items of predictive variables for a subset of participants), a random forest imputation technique was used with the assumption that data were missing at random (11). For women who became mothers after the SCI, the timespan between the age at injury and the first delivery was displayed by cross plotting the age at injury and the age at delivery of the first child. Moreover, the ages at the first and second deliveries after the SCI were cross-plotted. The data analyses were conducted using R version 3.5.0.
Results