| ID . | Age, y . | Menst. Length, d . | Bed Time, h:min . | DLMO, h:min . | Baseline . | CR . | ||
|---|---|---|---|---|---|---|---|---|
| P4, ng/mL M (SD) . | Menst. Phase . | P4, ng/mL M (SD) . | Menst. Phase . | |||||
| 22JSV | 20 | 28 | 00:30 | 23:27 | 2.10 (0.54) | F | 2.13 (0.31) | F |
| 22K7V | 19 | 30 | 23:58 | 23:06 | 2.06 (0.42) | F | 2.04 (0.26) | F |
| 25N6V | 23 | 28 | 22:40 | 20:51 | 2.64 (0.77) | F | 2.61 (0.48) | F |
| 2614V | 22 | 28 | 00:01 | 23:29 | 2.33 (0.44) | F | 2.33 (0.42) | F |
| 2692V | 23 | 28 | 23:33 | 22:58 | 1.90 (0.33) | F | 2.18 (0.46) | F |
| 26F2V | 22 | 33 | 00:04 | 0:07 | 1.75 (0.64) | F | 2.07 (0.45) | F |
| 26G3V | 24 | 29 | 23:03 | 22:36 | 2.48 (0.60) | F | 2.22 (0.35) | F |
| 26G6V | 23 | 29 | 21:00 | 21:46 | 2.52 (0.83) | F | 1.96 (0.37) | F |
| 26H6V | 19 | 31.5 | 23:04 | 23:34 | — | — | 2.35 (0.42) | F |
| 2251V | 23 | 28 | 01:32 | 0:57 | 2.69 (0.77) | F | 4.82 (1.17) | L |
| 21B8V | 27 | 28 | 23:12 | 21:02 | 39.44 (10.58) | L | 16.32 (6.51) | L |
| 22A1V | 24 | 29 | 22:01 | 21:55 | 4.70 (1.46) | L | 10.74 (3.13) | L |
| 22K3V | 24 | 27 | 22:03 | — | 12.11 (3.68) | L | 4.10 (1.28) | L |
| 25Q2V | 23 | 27 | 23:00 | 23:13 | 38.92 (13.79) | L | 28.52 (4.79) | L |
| 2622V | 22 | 27 | 22:41 | 21:06 | 14.51 (5.01) | L | 5.20 (3.14) | L |
| 26P1V | 29 | 28 | 22:51 | 21:32 | 16.61 (4.68) | L | 5.70 (3.06) | L |
| 26R1V | 20 | 32.5 | 21:56 | 19:10 | 13.44 (3.51) | L | 9.67 (2.34) | L |
| Follicular mean ± SEM | 21.67 ± 0.62 | 29.39 ± 0.60 | 23:19 ± 00:21 | 22:53 ± 00:20 | 2.27 ± 0.11 | n = 9 | 2.21 ± 0.07 | n = 9 |
| Luteal mean ± SEM | 24.00 ± 1.00 | 28.31 ± 0.65 | 22:54 ± 00:24 | 21:51 ± 00:41 | 19.96 ± 5.16 | n = 7 | 10.63 ± 2.94 | n = 8 |
| Group mean ± SEM | 22.76 ± 0.63 | 28.88 ± 0.45 | 23:07 ± 00:15 | 22:26 ± 00:22 | 10.01 ± 3.13 | n = 16 | 6.17 ± 1.70 | n = 17 |
| ID . | Age, y . | Menst. Length, d . | Bed Time, h:min . | DLMO, h:min . | Baseline . | CR . | ||
|---|---|---|---|---|---|---|---|---|
| P4, ng/mL M (SD) . | Menst. Phase . | P4, ng/mL M (SD) . | Menst. Phase . | |||||
| 22JSV | 20 | 28 | 00:30 | 23:27 | 2.10 (0.54) | F | 2.13 (0.31) | F |
| 22K7V | 19 | 30 | 23:58 | 23:06 | 2.06 (0.42) | F | 2.04 (0.26) | F |
| 25N6V | 23 | 28 | 22:40 | 20:51 | 2.64 (0.77) | F | 2.61 (0.48) | F |
| 2614V | 22 | 28 | 00:01 | 23:29 | 2.33 (0.44) | F | 2.33 (0.42) | F |
| 2692V | 23 | 28 | 23:33 | 22:58 | 1.90 (0.33) | F | 2.18 (0.46) | F |
| 26F2V | 22 | 33 | 00:04 | 0:07 | 1.75 (0.64) | F | 2.07 (0.45) | F |
| 26G3V | 24 | 29 | 23:03 | 22:36 | 2.48 (0.60) | F | 2.22 (0.35) | F |
| 26G6V | 23 | 29 | 21:00 | 21:46 | 2.52 (0.83) | F | 1.96 (0.37) | F |
| 26H6V | 19 | 31.5 | 23:04 | 23:34 | — | — | 2.35 (0.42) | F |
| 2251V | 23 | 28 | 01:32 | 0:57 | 2.69 (0.77) | F | 4.82 (1.17) | L |
| 21B8V | 27 | 28 | 23:12 | 21:02 | 39.44 (10.58) | L | 16.32 (6.51) | L |
| 22A1V | 24 | 29 | 22:01 | 21:55 | 4.70 (1.46) | L | 10.74 (3.13) | L |
| 22K3V | 24 | 27 | 22:03 | — | 12.11 (3.68) | L | 4.10 (1.28) | L |
| 25Q2V | 23 | 27 | 23:00 | 23:13 | 38.92 (13.79) | L | 28.52 (4.79) | L |
| 2622V | 22 | 27 | 22:41 | 21:06 | 14.51 (5.01) | L | 5.20 (3.14) | L |
| 26P1V | 29 | 28 | 22:51 | 21:32 | 16.61 (4.68) | L | 5.70 (3.06) | L |
| 26R1V | 20 | 32.5 | 21:56 | 19:10 | 13.44 (3.51) | L | 9.67 (2.34) | L |
| Follicular mean ± SEM | 21.67 ± 0.62 | 29.39 ± 0.60 | 23:19 ± 00:21 | 22:53 ± 00:20 | 2.27 ± 0.11 | n = 9 | 2.21 ± 0.07 | n = 9 |
| Luteal mean ± SEM | 24.00 ± 1.00 | 28.31 ± 0.65 | 22:54 ± 00:24 | 21:51 ± 00:41 | 19.96 ± 5.16 | n = 7 | 10.63 ± 2.94 | n = 8 |
| Group mean ± SEM | 22.76 ± 0.63 | 28.88 ± 0.45 | 23:07 ± 00:15 | 22:26 ± 00:22 | 10.01 ± 3.13 | n = 16 | 6.17 ± 1.70 | n = 17 |
Menstrual cycle length is self-reported. Where a range was given, the average length is reported. The means ± SEM of age, menstrual cycle length, bedtime, and dim light melatonin onset (DLMO) for each menstrual phase is based on the menstrual-phase classifications during CR. The daily mean and SD of P4 are shown for each participant on the different study days. Allocation to the luteal phase was based on a cutoff of P4 > 3 ng/mL.
Abbreviations: F, follicular phase; L, luteal phase; M (SD), mean (SD); Menst., menstrual.
| ID . | Age, y . | Menst. Length, d . | Bed Time, h:min . | DLMO, h:min . | Baseline . | CR . | ||
|---|---|---|---|---|---|---|---|---|
| P4, ng/mL M (SD) . | Menst. Phase . | P4, ng/mL M (SD) . | Menst. Phase . | |||||
| 22JSV | 20 | 28 | 00:30 | 23:27 | 2.10 (0.54) | F | 2.13 (0.31) | F |
| 22K7V | 19 | 30 | 23:58 | 23:06 | 2.06 (0.42) | F | 2.04 (0.26) | F |
| 25N6V | 23 | 28 | 22:40 | 20:51 | 2.64 (0.77) | F | 2.61 (0.48) | F |
| 2614V | 22 | 28 | 00:01 | 23:29 | 2.33 (0.44) | F | 2.33 (0.42) | F |
| 2692V | 23 | 28 | 23:33 | 22:58 | 1.90 (0.33) | F | 2.18 (0.46) | F |
| 26F2V | 22 | 33 | 00:04 | 0:07 | 1.75 (0.64) | F | 2.07 (0.45) | F |
| 26G3V | 24 | 29 | 23:03 | 22:36 | 2.48 (0.60) | F | 2.22 (0.35) | F |
| 26G6V | 23 | 29 | 21:00 | 21:46 | 2.52 (0.83) | F | 1.96 (0.37) | F |
| 26H6V | 19 | 31.5 | 23:04 | 23:34 | — | — | 2.35 (0.42) | F |
| 2251V | 23 | 28 | 01:32 | 0:57 | 2.69 (0.77) | F | 4.82 (1.17) | L |
| 21B8V | 27 | 28 | 23:12 | 21:02 | 39.44 (10.58) | L | 16.32 (6.51) | L |
| 22A1V | 24 | 29 | 22:01 | 21:55 | 4.70 (1.46) | L | 10.74 (3.13) | L |
| 22K3V | 24 | 27 | 22:03 | — | 12.11 (3.68) | L | 4.10 (1.28) | L |
| 25Q2V | 23 | 27 | 23:00 | 23:13 | 38.92 (13.79) | L | 28.52 (4.79) | L |
| 2622V | 22 | 27 | 22:41 | 21:06 | 14.51 (5.01) | L | 5.20 (3.14) | L |
| 26P1V | 29 | 28 | 22:51 | 21:32 | 16.61 (4.68) | L | 5.70 (3.06) | L |
| 26R1V | 20 | 32.5 | 21:56 | 19:10 | 13.44 (3.51) | L | 9.67 (2.34) | L |
| Follicular mean ± SEM | 21.67 ± 0.62 | 29.39 ± 0.60 | 23:19 ± 00:21 | 22:53 ± 00:20 | 2.27 ± 0.11 | n = 9 | 2.21 ± 0.07 | n = 9 |
| Luteal mean ± SEM | 24.00 ± 1.00 | 28.31 ± 0.65 | 22:54 ± 00:24 | 21:51 ± 00:41 | 19.96 ± 5.16 | n = 7 | 10.63 ± 2.94 | n = 8 |
| Group mean ± SEM | 22.76 ± 0.63 | 28.88 ± 0.45 | 23:07 ± 00:15 | 22:26 ± 00:22 | 10.01 ± 3.13 | n = 16 | 6.17 ± 1.70 | n = 17 |
| ID . | Age, y . | Menst. Length, d . | Bed Time, h:min . | DLMO, h:min . | Baseline . | CR . | ||
|---|---|---|---|---|---|---|---|---|
| P4, ng/mL M (SD) . | Menst. Phase . | P4, ng/mL M (SD) . | Menst. Phase . | |||||
| 22JSV | 20 | 28 | 00:30 | 23:27 | 2.10 (0.54) | F | 2.13 (0.31) | F |
| 22K7V | 19 | 30 | 23:58 | 23:06 | 2.06 (0.42) | F | 2.04 (0.26) | F |
| 25N6V | 23 | 28 | 22:40 | 20:51 | 2.64 (0.77) | F | 2.61 (0.48) | F |
| 2614V | 22 | 28 | 00:01 | 23:29 | 2.33 (0.44) | F | 2.33 (0.42) | F |
| 2692V | 23 | 28 | 23:33 | 22:58 | 1.90 (0.33) | F | 2.18 (0.46) | F |
| 26F2V | 22 | 33 | 00:04 | 0:07 | 1.75 (0.64) | F | 2.07 (0.45) | F |
| 26G3V | 24 | 29 | 23:03 | 22:36 | 2.48 (0.60) | F | 2.22 (0.35) | F |
| 26G6V | 23 | 29 | 21:00 | 21:46 | 2.52 (0.83) | F | 1.96 (0.37) | F |
| 26H6V | 19 | 31.5 | 23:04 | 23:34 | — | — | 2.35 (0.42) | F |
| 2251V | 23 | 28 | 01:32 | 0:57 | 2.69 (0.77) | F | 4.82 (1.17) | L |
| 21B8V | 27 | 28 | 23:12 | 21:02 | 39.44 (10.58) | L | 16.32 (6.51) | L |
| 22A1V | 24 | 29 | 22:01 | 21:55 | 4.70 (1.46) | L | 10.74 (3.13) | L |
| 22K3V | 24 | 27 | 22:03 | — | 12.11 (3.68) | L | 4.10 (1.28) | L |
| 25Q2V | 23 | 27 | 23:00 | 23:13 | 38.92 (13.79) | L | 28.52 (4.79) | L |
| 2622V | 22 | 27 | 22:41 | 21:06 | 14.51 (5.01) | L | 5.20 (3.14) | L |
| 26P1V | 29 | 28 | 22:51 | 21:32 | 16.61 (4.68) | L | 5.70 (3.06) | L |
| 26R1V | 20 | 32.5 | 21:56 | 19:10 | 13.44 (3.51) | L | 9.67 (2.34) | L |
| Follicular mean ± SEM | 21.67 ± 0.62 | 29.39 ± 0.60 | 23:19 ± 00:21 | 22:53 ± 00:20 | 2.27 ± 0.11 | n = 9 | 2.21 ± 0.07 | n = 9 |
| Luteal mean ± SEM | 24.00 ± 1.00 | 28.31 ± 0.65 | 22:54 ± 00:24 | 21:51 ± 00:41 | 19.96 ± 5.16 | n = 7 | 10.63 ± 2.94 | n = 8 |
| Group mean ± SEM | 22.76 ± 0.63 | 28.88 ± 0.45 | 23:07 ± 00:15 | 22:26 ± 00:22 | 10.01 ± 3.13 | n = 16 | 6.17 ± 1.70 | n = 17 |
Menstrual cycle length is self-reported. Where a range was given, the average length is reported. The means ± SEM of age, menstrual cycle length, bedtime, and dim light melatonin onset (DLMO) for each menstrual phase is based on the menstrual-phase classifications during CR. The daily mean and SD of P4 are shown for each participant on the different study days. Allocation to the luteal phase was based on a cutoff of P4 > 3 ng/mL.
Abbreviations: F, follicular phase; L, luteal phase; M (SD), mean (SD); Menst., menstrual.
This PDF is available to Subscribers Only
View Article Abstract & Purchase OptionsFor full access to this pdf, sign in to an existing account, or purchase an annual subscription.
