Publications

BACKGROUND

Whether contraceptive counseling improves contraceptive use is unknown.

OBJECTIVE

To evaluate the association between contraceptive counseling provided by primary care physicians and patients' contraceptive use.

DESIGN/PARTICIPANTS

All women aged 18-50 who visited one of four primary care clinics between October 2008 and April 2010 were invited to complete surveys about their visit. Seven to 30 days post visit, participants completed a survey assessing pregnancy intentions, receipt of contraceptive counseling, and use of contraception at last sexual intercourse. Survey data were linked to medical record data regarding contraceptive prescriptions prior to and during the clinic visit. Women were classified as in need of contraceptive counseling if they were sexually active, were not pregnant or trying to get pregnant, and had no evidence of contraceptive use prior to their index clinic visit.

KEY RESULTS

Fifty percent (n = 386) of women were in need of contraceptive counseling at the time of their visit. Those who received contraceptive counseling from a primary care provider were more likely to report use of hormonal contraception when they last had sex (unadjusted OR: 3.83, CI: 2.25-6.52), even after adjusting for age, race, education, income, marital status, pregnancy intentions, and prior pregnancy (adjusted OR: 2.68, CI: 1.48-4.87). Counseling regarding specific types of contraception was associated with an increased use of those methods. For example, counseling regarding hormonal contraceptives was associated with a greater likelihood of use of hormonal methods (adjusted OR: 4.78, CI: 2.51-9.12) and counseling regarding highly effective reversible methods was highly associated with use of those methods (adjusted OR: 18.45, CI: 4.88-69.84). These same relationships were observed for women with prior evidence of contraceptive use.

CONCLUSIONS

Contraceptive counseling in primary care settings is associated with increased hormonal contraceptive use at last intercourse. Increasing provision of contraceptive counseling in primary care may reduce unintended pregnancy.

Heme oxygenase (HO) represents an intrinsic cytoprotective system based on its anti-oxidative and anti-inflammatory properties mediated via its products biliverdin/bilirubin and carbon monoxide (CO). We showed that deletion of HO-2 results in impaired corneal wound healing with associated chronic inflammatory complications. This study was undertaken to examine the role of HO activity and the contribution of HO-1 and HO-2 to corneal wound healing in an in vitro epithelial scratch injury model. A scratch wound model was established using human corneal epithelial (HCE) cells. These cells expressed both HO-1 and HO-2 proteins. Injury elicited a rapid and transient increase in HO-1 and HO activity; HO-2 expression was unchanged. Treatment with biliverdin or CORM-A1, a CO donor, accelerated wound closure by 10% at 24 h. Inhibition of HO activity impaired wound closure by more than 50%. However, addition of biliverdin or CORM-A1 reversed the effect of HO inhibition on wound healing. Moreover, knockdown of HO-2 expression, but not HO-1, significantly impaired wound healing. These results indicate that HO activity is required for corneal epithelial cell migration. Inhibition of HO activity impairs wound healing while amplification of its activity restores and accelerates healing. Importantly, HO-2, which is highly expressed in the corneal epithelium, appears to be critical for the wound healing process in the cornea. The mechanisms by which it contributes to cell migration in response to injury may reside in the cytoprotective properties of CO and biliverdin.