Table 2.

MPA Concentrations (ng/mL) at Weeks 2, 4, 6, 8, 10, and 12

	Week 2 (N = 40)	Week 4 (N = 40)	Week 6 (N = 41)	Week 8 (N = 42)	Week 10 (N = 42)	Week 12 (N = 42)
Mean (SD)	1.077 (0.587)	0.987 (0.738)	0.692 (0.373)	0.628 (0.301)	0.461 (0.233)	0.422 (0.255)
Minimum, maximum	0.283, 2.440	0.197, 3.420	0.185, 1.690	0.181, 1.660	0.083, 1.010	0.039, 1.110
Median (Q1, Q3)	0.962 (0.567, 1.475)	0.673 (0.437, 1.470)	0.600 (0.442, 0.979)	0.603 (0.396, 0.747)	0.444 (0.254, 0.645)	0.386 (0.234, 0.579)
No. (% [95% CI]) <0.1 ng/mL	0 (0 [0–8.8])	0 (0 [0–8.8])	0 (0 [0–8.6])	0 (0 [0–8.4])	1 (2.4 [.1–12.6])	5 (11.9 [4.0–25.6])

Abbreviations: CI, confidence interval; MPA, medroxyprogesterone acetate; Q, quartile.