Table 2.

Equivalence test for primary outcomes.

	T0 blood loss		log (T0 blood loss)		TOST
	Mean	95% CI	Mean	95% CI
Synthetic oxytocin (n = 127)	269.12	219.39–318.84	5.19	5.03–5.35	Test for difference
Tranexamic acid (n = 104)	263.88	215.25–312.52	5.19	5.02–5.37	H0: no difference (diff = 0)
					p-value >0.05 (not rejected)
Overall (n = 231)	266.76	231.99–301.53	5.19	5.07–5.31
					Test for equivalence
Difference	5.23	−64.81 to 75.28	0.00	−0.24 to 0.24	H0: no equivalence (|θ| ≥ Δ)
					p-value <0.05 (rejected)
p-value for normality	<0.001 (not normal)		>0.05 (normal)
Equivalence limits (Δ)	150 mL		5.01 (log units)		Conclusion: equivalence

	T0 blood loss		log (T0 blood loss)		TOST
	Mean	95% CI	Mean	95% CI
Synthetic oxytocin (n = 119)	397.66	334.36–460.96	5.68	5.54–5.82	Test for difference
Tranexamic acid (n = 91)	405.64	344.23–467.04	5.75	5.59–5.90	H0: no difference (diff = 0)
					p-value >0.05 (not rejected)
Overall (n = 210)	401.12	356.81–445.43	5.71	5.61–5.81
					Test for equivalence
Difference	−7.97	−97.61 to 81.66	−0.07	−0.27 to 0.14	H0: no equivalence (|θ| ≥ Δ)
					p-value <0.05 (rejected)
p-value for normality	<0.001 (not normal)		>0.05 (normal)
Equivalence limits (Δ)	150 mL		5.01 (log units)		Conclusion: equivalence