The mean duration of labour was longer in the experimental group by 1.1 hr but this was of borderline statistical significance (95% CI 0.2 to 2.0). The mean time to pain medication was 2.6 hr (SD 1.3) in the experimental group and 1.9 hr (SD 1,2) in the control group. However, this was not statistically significant, with a mean difference of 0.7 hr (95% CI -0.1 to 1.5). The anthropometric measures of the newborns were not significantly different between the groups. All these data arc presented in Table 4, with individual patient data presented in Table 3 (on the eAddenda.)