Table 3.
Parameter estimates of fixed and random effects and goodness-of-fit indices for selected models predicting Female Sexual Function Index (FSFI) Total score
| Parameter | Model 1 | Model 2 | Model 3 | Model 4 | |
|---|---|---|---|---|---|
| Fixed effects | |||||
| Level 1 | |||||
| Intercept | γ00 | 19.56** (0.57) | 18.39** (0.64) | 17.35** (0.70) | 12.34** (1.98) |
| Time | γ10 | 2.08** (0.33) | 5.87** (0.82) | 4.06** (0.72) | 4.09** (0.72) |
| Time2 | γ20 | — | −1.27** (0.22) | −0.92** (0.23) | −0.93** (0.22) |
| SSE | γ30 | — | — | 0.83** (0.12) | 0.78** (0.10) |
| Level 2 | |||||
| FSFI-Satisfaction/intercept | γ01 | — | — | — | 1.72† (0.65) |
| Random effects | |||||
| Level 1 | |||||
| Residual | σ2ε | 14.06 (2.10) | 11.82 (1.77) | 8.98 (1.15) | 8.98 (1.13) |
| Level 2 | |||||
| Intercept | σ20 | 7.81† (3.89) | 8.93** (3.71) | 14.85** (4.05) | 12.32** (3.49) |
| Time | σ21 | 1.88† (1.10) | 1.77* (0.96) | — | — |
| Satisfying sexual events | σ23 | — | — | 0.09† (0.07) | 0.03† (0.04) |
| No. of estimated parameters | 6 | 7 | 8 | 9 | |
| Deviance | 1,105.8 | 1,083.3 | 1,031.9 | 1,025.7 | |
| Pseudo-R2 | — | 0.16 | 0.36 | 0.36 |
**
P < 0.001,
*
P < 0.01,
†
P < 0.05.
Models did not include random effects for time2 or FSFI-Satisfaction score caused by negligible effects on goodness-of-fit. Pseudo-R2 is based on the comparison of the unconditional growth model (Model 1) to more parametized models [20].