Table 3.
Stepwise multinomial logistic regression modeling among survivors of trauma; the role of exposure status, demographic covariates, and trauma characteristics in association with PMDD status
| Stepwise models | Premenstrual symptomsa | PMDDa | p valueb | ||
|---|---|---|---|---|---|
| Stage 1 model | OR | 95% CI | OR | 95% CI | |
| Exposure status | <0.001 | ||||
| History of trauma without PTSD | 1.00 | – | 1.00 | – | |
| History of trauma with PTSD | 1.58* | 1.11–2.23 | 4.52*** | 2.41–8.46 | |
| Stage 2 model | AOR | 95% CI | AOR | 95% CI | |
| Exposure status | |||||
| History of trauma without PTSD | 1.00 | – | 1.00 | – | 0.002 |
| History of trauma with PTSD | 1.28 | 0.90–1.83 | 3.15*** | 1.68–5.89 | |
| Demographic covariatesc | – | – | – | – | – |
| Stage 3 model | AOR | 95% CI | AOR | 95% CI | |
| Exposure status | 0.014 | ||||
| History of trauma without PTSD | 1.00 | – | 1.00 | – | |
| History of trauma with PTSD | 1.18 | 0.83–1.67 | 2.63** | 1.36–5.11 | |
| Demographic covariatesc | – | – | – | – | – |
| Worst event type | 0.807 | ||||
| Primary trauma | 1.06 | 0.71–1.60 | 1.36 | 0.50–3.70 | |
| Secondary trauma | 1.00 | – | 1.00 | – | |
| Number of traumatic events | <0.001 | ||||
| 1 event | 1.00 | – | 1.00 | – | |
| 2–3 events | 1.39 | 0.80–2.42 | 7.89** | 2.11–29.47 | |
| ≥4 events | 1.74* | 1.01–2.98 | 11.93*** | 3.09–46.00 | |
OR unadjusted odds ratio, AOR adjusted odds ratio, 95% CI 95% confidence interval
*
p<0.05,
**
p<0.01,
***
p<0.001
a
Modeled against the non-event: no premenstrual symptoms
b
p value from Wald chi-squared test
c
Demographic covariates include: race, employment status, marital status, educational attainment, smoking history, history of oral contraceptive use, lifetime history of any mood disorder, past month diagnosis of any mood disorder, body mass index, age, income, and social desirability