ABSTRACT
OBJECTIVES: We examined whether provision of contraception at discharge following delivery was associated with lower rates of postpartum visit (PPV) attendance. METHODS: We conducted a retrospective cohort study of women who received pregnancy care at a Midwestern medical center in 2013. Attendance at the postpartum visit was compared for women with sterilization, contraception initiated prior to discharge (depot medroxyprogesterone acetate or etonogestrel implant), hormonal contraception prescription, or no contraception provided at postpartum discharge. Poisson regression models with robust standard errors were used to estimate the relative risk of postpartum visit attendance controlling for age, race, and parity, insurance status, and histories of both depression and drug abuse. RESULTS: Of the 1015 women who met inclusion criteria, 55% had been prescribed contraception, had initiated contraception prior to discharge, or were sterilized at the time of discharge following delivery. After adjustment for confounders, there was no association between receiving contraception and PPV attendance (relative risk for prescribed contraceptionâ¯=â¯1.09 [95% CI 0.85, 1.39], for contraception initiated prior to dischargeâ¯=â¯0.83 [95% CI 0.67, 1.03], for sterilizationâ¯=â¯0.86 [95% CI 0.63, 1.17] compared to no contraception). CONCLUSIONS: We found no evidence that prescribing or administering contraception post-delivery was associated with lower rates of return for postpartum follow up. IMPLICATIONS: This single site study suggests that providing effective contraception at discharge following delivery does not appear to impact PPV attendance.
Subject(s)
Contraception , Patient Discharge , Female , Humans , Postpartum Period , Pregnancy , Retrospective Studies , Sterilization, ReproductiveABSTRACT
A model was developed to assess the effect of an acetabular flange on pressure within different zones of the cement mantle during insertion. Two prosthetic designs were assessed in 3 different sizes. Flanged components produced significantly higher mean pressures than unflanged ones (P < .01). The effect of a flange was more pronounced at the rim than at the pole. Delayed insertion resulted in a further significant rise in mean pressure (P < .01), but this did not compensate for the lack of a flange. This experimental model supports the use of a flange to increase pressure within the cement mantle on component insertion. The beneficial effect is more marked in the area that is most likely to show deficiency in the cement-bone interface on postoperative radiographs.
