Table 2.

Primary and secondary outcomes (intention-to-treat analysis).

Pain score timepoints	Spinal needle (n = 31)	Chloe SED® (n = 30)
Before MVA	2.7 (2.0–3.4)	3.5 (2.6–4.4)
During injection of PCB	4.3 (3.6–5.0)	4.5 (4.0–5.0)
During cervical dilation	3.1 (2.6–3.7) n = 28	3.1 (2.6–3.7) n = 26
During uterine evacuationa	4.1 (3.5–4.7)	3.8 (3.1–4.6)
30 min after procedure	0.4 (0.1–0.7) n = 30	0.4 (0.2–0.7)

Data are mean pain scores (90% confidence interval) on an 11-point NRS. Not all MVAs required cervical dilation to be completed. One patient did not report a pain score 30 min post-procedure.

^a Primary outcome.