Contraception (Birth Control) and Family Planning PubHealthInfo

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PubHealth.info® (a subsidiary of PakMed) presents scientific information mainly based on abstracts of articles published on a variety of public health issues/topics, particularly encompassing population planning, disease prevention, maternal and child health, and communicable and non-communicable diseases (like HIV AIDS, malaria, etc) that are affecting a significant portion of population in developing and developed countries. Here you can find abstracts of articles published on a variety of public health topics under category "Contraception (Birth Control) and Family Planning". Contraception (birth control) is a regimen of one or more actions, devices, or medications followed in order to deliberately prevent or reduce the likelihood of a woman becoming pregnant or giving birth. Therefore contraception is the utilization of various and sundry surgical procedures, devices, practices, agents, or drugs with the intention of preventing conception or impregnation (pregnancy). Methods and intentions typically termed birth control may be considered a pivotal ingredient to family planning. Birth control is a controversial political and ethical issue in many cultures and religions, and although it is generally less controversial than abortion specifically.

YEAR: 1995

CATEGORY: Contraception (Birth Control) and Family Planning

TITLE

Drs. Thomas and Noonan reply re "Comparison of Recalled and Validated Oral

Contraceptive Histories" [letter]

AUTHORS

Thomas DB; Noonan EA

SOURCE

AMERICAN JOURNAL OF EPIDEMIOLOGY. 1995 Apr 15;141(8):791.

ABSTRACT

Dr. Realini asserts in his letter that the results of the WHO Collaborative Study of Neoplasia and Steroid

Contraceptives concerning oral contraceptives and breast cancer could have been biased as a result of better recall

of prior oral contraceptive use by cases in comparison to controls. Although this is a possibility in any case-control

study based on data collected by interviews, being able to validate positive oral contraceptive histories of more

cases than controls does not necessarily mean more cases than controls who were users of oral contraceptives

gave a history of such use. The issue of bias due to recall was discussed in the original paper. The medical

records of women who claimed contraceptive use were checked for brand names and duration of use; the medical

records of women who did not were not checked. This procedure did not alter their classification as users or

nonusers. Since few combined oral contraceptives were available, and erroneous reports of use of combined or

noncombined preparations were corrected, the estimated values of the relative risk of breast cancer in women who

ever used combined oral contraceptives could not be appreciably influenced by any differences in the proportion of

cases or controls whose oral contraceptive histories were supplemented by information from medical records.

However, such differences could alter estimated values of the relative risk in relation to duration, latency, or recency.

Information was obtained from the medical records of users in 27% of cases and 18% of controls. These

percentages varied with center (0-94% of cases, 0-89% of controls). Information was most frequently obtained from

the medical records of long-term and current or recent users in both groups. Similar results were obtained separately

from countries in which information from medical records was obtained for relatively high and low proportions of

users, and in individuals whose use was ascertained solely from interviews and from both interviews and medical

records. (PubHealth.info Document ID: CONT2T 2548-06)

PubHealth.info NOTE: The author(s) of this article titled, "Drs. Thomas and Noonan reply re "Comparison of Recalled

and Validated Oral Contraceptive Histories" [letter]", is(are) Thomas DB; Noonan EA. The source of this article is

"AMERICAN JOURNAL OF EPIDEMIOLOGY. 1995 Apr 15;141(8):791.". This article was published in 1995 in English

language(s). (PubHealth.info® Document ID: CONT2T 2548-06. All rights reserved with PubHealth.info) PIN: 7548

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