Contraceptive failure related to estimated cycle day of conception relative to the start of the last bleeding episode

Low maternal progesterone may contribute to both obstetrical complications and autism

Studies show increased autism risk among children born to mothers experiencing obstetrical complications. Although this is usually interpreted as suggesting that the obstetrical complications could be causing autism, it is possible that a single factor could be responsible for both complications and autism. We hypothesized that low levels of the hormone progesterone is responsible since it is supplied to the fetus maternally and does not only support pregnancy but also promotes brain development. Following a review of the literature, we report findings from a survey of mothers of autistic children (n=86) compared to mothers of typically-developing children (n=88) regarding obstetrical histories, including five obstetrical risk factors indicative of low progesterone. Using this analysis, the ASD group had significantly more risk factors than controls (1.21 ± 0.09 vs. 0.76 ± 0.08, p<.0001), suggesting low progesterone. Thus, results suggest that low progesterone may be responsible for both obstetrical complications and brain changes associated with autism and that progesterone levels should be routinely monitored in at-risk pregnancies. Our hypothesis also suggests that ensuring adequate levels of progesterone may decrease the likelihood of autism.

Contraceptive practices and attitudes among immigrant and nonimmigrant women in Canada

OBJECTIVE

To compare experiences, attitudes, and beliefs of immigrant and nonimmigrant women presenting for abortion with regard to contraception, and to identify difficulties involved in accessing contraception in Canada.

DESIGN

A survey of immigrant and nonimmigrant women asking about women's experiences with and attitudes toward contraceptives and any barriers to contraceptive access they have encountered. Demographic data including ethnicity, country of origin, and length of residence in Canada were collected.

SETTING

Two urban abortion clinics.

PARTICIPANTS

Women presenting for first-trimester abortion.

MAIN OUTCOME MEASURES

Type of contraception used when the unwanted pregnancy was conceived, attitudes to contraceptives, and barriers to access of contraceptives.

RESULTS

A total of 999 women completed questionnaires during the study period (75.9% response rate); 466 of them (46.6%) were born in Canada. Immigrant women presenting for abortion were less likely to be using hormonal contraception when they got pregnant (12.5% vs 23.5%, P < .001) and had more negative attitudes toward hormonal contraception (62.6% vs 51.6%, P < .003). They reported having more difficulties accessing contraception before the abortion (24.8% vs 15.3%, P < .001) than nonimmigrant women did. About half of all the women expressed fear about intrauterine device use. The longer immigrant women had lived in Canada, the more likely they were to have similar responses to those of Canadian-born women.

CONCLUSION

The information provided by this study might be valuable for family doctors and other clinicians to improve contraceptive information resources for immigrants to address existing knowledge gaps and other culturally relevant concerns. As about half of all women presenting for abortion expressed negative attitudes toward the more effective methods of contraception, it is important that family doctors educate all women at risk for unintended pregnancies.