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. Author manuscript; available in PMC: 2018 Apr 1.

Published in final edited form as: Contraception. 2016 Dec 30;95(4):398–404. doi: 10.1016/j.contraception.2016.12.007

Table 2. Correlation between reduced-sampling estimates of LNG PK parameters at steady state and 13-sample steady-state AUC_{SS, 0-24}.

Parameters	n^a	k^b	r (95% Confidence Interval)^c	P value
AUC^d
Steady-state AUC_{SS, 0-4-24}	14	9	0.94 (0.82—0.98)	<.0001
Steady-state AUC_{SS, 0-4-24}	14	6	0.94 (0.82—0.98)	<.0001
Steady-state C₆	14	1	0.94 (0.82—0.98)	<.0001
Steady-state C₈	14	1	0.92 (0.76—0.97)	<.0001
Steady-state C₁₂	14	1	0.95 (0.85—0.98)	<.0001
Steady-state C₁₆	14	1	0.93 (0.79—0.98)	<.0001
Steady-state C₂₄	14	1	0.95 (0.85—0.98)	< .0001

^a

No. of participants used in calculation.

^b

No. of LNG measures used per participant.

^c

Pearson correlation coefficient.