Figure 1
Cortisol and Estradiol Curve Fit.
Table 1
Descriptive Statistics.
| Total Sample (n = 23) | |||
|---|---|---|---|
| Characteristic | Mean (SD) | Range | Number (%) |
| Age | 28.7(5.8) | 21–39 | |
| BMI | 24.7(4.5) | 18.0–41.6 | |
| Marital Status | |||
| Married | 6(26.1) | ||
| Single | 6(69.6) | ||
| Divorced/Separated | 1(4.3) | ||
| No. Children1 | |||
| None | 15(65.2) | ||
| 1 to 5 years | 3(13.0) | ||
| 6 to 12 years | 4(17.4) | ||
| Education | |||
| High School | 5(21.7) | ||
| Bachelor’s Degree | 16(69.6) | ||
| Master’s Degree | 2(8.7) | ||
| Daily Caffeine (cups) | 1.3(1.1) | 0–4 | |
| POMS | |||
| Total Scale Score | 15.4(24.1) | –24– + 86.8 | |
| Depression-Dejection Subscale Score | 5.2(6.9) | 0–25 | |
| Tension-Anxiety Subscale Score | 6.3(4.2) | 0–16 | |
| Fatigue-Inertia Subscale Score | 7.3(5.4) | 0–23 | |
| Vigor-Activity Subscale Score | 14.6 (5.5) | 3–25 | |
| PANAS | |||
| Positive Affect Subscale | 33.6(8.3) | 13–46 | |
| Negative Affect Subscale Score | 17.3(5.7) | 10–30 | |
| SSQ Scale Score | 4.5(.97) | 1.71–5.93 | |
| PSQI Scale Score | 3.5(1.7) | 1–8 | |
| Energy VAS-Energy Scale Score | 72.7(14.8) | 45.3–113.3 | |
| Cortisol Acrophase (hours) | 9.2(3.4) | 2.06–15.01 | |
| Estradiol Acrophase (hours) | 9.9(7.4) | .19–22.19 | |
| Cortisol-Estradiol PAD (hours) | 2.7(5.0) | –7.9–11.92 |
[i] 1 n = 22 for this variable.
Table 2
Goodness of Fit for Cortisol and Estradiol Curve (N = 23).
| Cortisol Curve | Estradiol Curve | |||||||
|---|---|---|---|---|---|---|---|---|
| Participant | R2 | Normality of residuals | p-Value | Run Test p-value | R2 | Normality of Residuals | p-value | Run Test p-Value |
| 1 | 0.47 | 18.14 | 0.000* | 0.296 | 0.46 | 0.042 | 0.980 | 0.966 |
| 2 | 0.55 | .794 | 0.672 | 0.296 | 0.40 | 1.333 | 0.513 | 0.999 |
| 3 | 0.95 | 1.067 | 0.587 | 0.976 | 0.72 | 0.105 | 0.949 | 0.881 |
| 4 | 0.32 | 17.75 | 0.000* | 0.576 | 0.68 | 0.340 | 0.843 | 0.043* |
| 5 | 0.46 | 2.973 | 0.226 | 0.911 | 0.51 | 1.359 | 0.507 | 0.733 |
| 6 | 0.52 | 7.302 | 0.026* | 0.576 | 0.55 | 0.349 | 0.839 | 0.966 |
| 7 | 0.88 | 1.612 | 0.447 | 0.533 | 0.56 | 1.987 | 0.371 | 0.954 |
| 9 | 0.77 | 7.756 | 0.021 | 0.606 | 0.74 | 0.889 | 0.641 | 0.966 |
| 10 | 0.63 | 0.229 | 0.892 | 0.347 | 0.54 | 6.045 | 0.049* | 0.929 |
| 11 | 0.73 | 1.940 | 0.379 | 0.879 | 0.57 | 5.175 | 0.075 | 0.347 |
| 12 | 0.56 | 1.182 | 0.554 | 0.999 | 0.66 | 1.687 | 0.430 | 0.966 |
| 13 | 0.75 | 3.372 | 0.185 | 0.879 | 0.45 | 3.575 | 0.137 | 0.879 |
| 14 | 0.78 | 1.431 | 0.489 | 0.347 | 0.35 | 2.246 | 0.325 | 0.966 |
| 15 | 0.54 | 4.246 | 0.120 | 0.878 | 0.67 | 1.577 | 0.454 | 0.793 |
| 16 | 0.73 | 0.601 | 0.740 | 0.576 | 0.49 | 1.444 | 0.486 | 0.347 |
| 17 | 0.55 | 1.182 | 0.554 | 0.879 | 0.38 | 0.858 | 0.651 | 0.966 |
| 18 | 0.62 | 0.015 | 0.993 | 0.500 | 0.50 | 0.480 | 0.787 | 0.733 |
| 19 | 0.75 | 1.438 | 0.487 | 0.500 | 0.37 | 1.287 | 0.526 | 0.966 |
| 20 | 0.57 | 3.876 | 0.144 | 0.879 | 0.49 | 3.822 | 0.148 | 0.999 |
| 21 | 0.90 | 0.999 | 0.607 | 0.879 | 0.52 | 0.356 | 0.837 | 0.500 |
| 22 | 0.60 | 11.150 | 0.004* | 0.652 | 0.88 | 5.200 | 0.074 | 0.47 |
| 23 | 0.69 | 11.850 | 0.003* | 0.348 | 0.29 | 0.258 | 0.879 | 0.793 |
| 24 | 0.83 | 2.186 | 0.335 | 0.296 | 0.39 | 0.480 | 0.043* | 0.296 |
[i] *One-tailed significance level p < 0.05.
Figure 2
Curve Fit to Y = B0 + B1*X +B2*X^2 for Affect Measures and Cortisol-Estradiol PD.
Table 3
Goodness of Fit for Cortisol-Estradiol PD and Affect Measures for Sample (N = 23).
| Goodness of Fit | Straight Line | ||||
|---|---|---|---|---|---|
| R2(DF) | Normality of Residuals (p) | Run Test p | F(DFn, DFd) | p | |
| Affect | |||||
| POMS Total Score | .34(20)1 | 1.4(0.50) | 0.97 | 5.8(1,20) | 0.022 |
| POMS Depression-Dejection Score | .36(20) | 0.81(0.66) | 0.96 | 6.5(1,20) | 0.022 |
| POMS Tension-Anxiety Score | .30(20)1 | 5.9(0.05) | 0.90 | 4.4(1,20) | 0.0482 |
| Positive Affect Score | .28(20)1 | 7.3(0.02)2 | 0.54 | 4.5(1,20) | 0.0472 |
| Negative Affect Score | .30(20)1 | 1.6(0.44) | 0.51 | 6.21(1,20) | 0.022 |
[i] Notes: Model: Y = B0 + B1*X + B2*X^2. POMS = Profile of Moods;
1 Correlation greater than 0.25;
2 Significant at p < .05.
3 Trend to significance at p between 0.05 and 1.00.