Table 1 Plasma steroid levels before and after steroid (P4, T, E2) or vehicle (V) implantation

P4 1 day

0.6 ± 0.3

82.2 ± 3.7 ^{***, †}

1.8 ± 0.6

3.4 ± 0.9

18.7 ± 7.3

16.5 ± 5.8

4/4

P4 2 days

1.6 ± 0.6

92.5 ± 17.0 ^{**, †}

5.6 ± 2.2

5.0 ± 1.9

29.7 ± 7.9

22.0 ± 5.9

5/5

P4 5 days

3.0 ± 1.6

53.7 ± 6.0 ^*

12.0 ± 7.7

10.6 ± 6.4

30.5 ± 9.1

10.1 ± 4.5

3/3

P4 2 days

2-cm tubing

0.5 ± 0.2

23.4 ± 6.9

7.1 ± 2.6

3.7 ± 0.9

25.2 ± 6.0

15.5 ± 4.5

3/3

T 2 days

1.1 ± 0.0

0.9 ± 0.3

10.9 ± 5.2

161.1 ± 39.0

24.4 ± 12.5

29.0 ± 11.0

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E2 2 days

4.4 ± 0.1

3.1 ± 2.4

8.4 ± 1.8

10.1 ± 1.8

31.1 ± 3.2

54.2 ± 3.5 ^**

1/4

V 2 days

1.2 ± 0.1

1.1 ± 0.4

7.3 ± 3.3

8.0 ± 3.2

18.5 ± 2.3

15.5 ± 2.2

0/3