From: Menstrual function among women exposed to polybrominated biphenyls: A follow-up prevalence study
 | Difference in Cycle Length, (days) | |||||
---|---|---|---|---|---|---|
 | Without Weight Loss | With Weight Loss | ||||
 | No. | Diff | (95% CI) | No. | Diff | (95% CI) |
Tertiles of PBB Estimated at Study Interview § | ||||||
Low | 95 | 0.00 | Ref | 17 | -0.28 | (-1.79 to 1.22) |
Middle | 97 | 0.35 | (-0.48 to 1.18) | 16 | 0.21 | (-1.34 to 1.76) |
High | 101 | 0.30 | (-0.53 to 1.13) | 11 | -1.04 | (-2.86 to 0.77) |
Test for Interaction: p = 0.57, 2 df | ||||||
Tertiles of PBB Measured at Cohort Enrollment | Â | Â | Â | Â | Â | Â |
Low | 97 | 0.00 | Ref | 14 | 0.35 | (-1.27 to 1.98) |
Middle | 103 | 0.01 | (-0.80 to 0.82) | 17 | -1.02 | (-2.53 to 0.48) |
High | 93 | 0.54 | (-0.30 to 1.39) | 13 | -0.22 | (-1.88 to 1.46) |
Test for Interaction: p = 0.45, 2 df |