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PubMed1982

A simplified method for recording basal body temperature.

The present study was undertaken to evaluate thermocrystalography as a means of simplifying the recording of basal body temperature (BBT) for the purpose of determining the time of ovulation. Accordingly, BBT, as recorded by disposable oral thermocrystal thermometers manufactured for fever detection, was compared with that obtained by a conventional rectal glass thermometer to establish reliability of the method within the normal temperature range. The readings by both methods were comparable, with a nonsignificant difference between 109 readings when analyzed by a paired t test. A biphasic curve was easily discernable in each of the eight cycles monitored. The use of disposal thermocrystal thermometers provides an alternative to the conventional method of BBT determination, which is faster, easier to read, and potentially more acceptable because of its oral use.

Body Temperature↗
PubMed1980

[A simple method for estimating the day of ovulation by basal body temperature chart (author's transl)].

A new method for estimating the day of ovulation was assessed. The method is as follows; The range of hypothermic phase presumed 0.1 degrees C around mean basal body temperature of early 10 menstrual days. The day of ovulation was estimated by searching for the day which is followed by at least 4 consecutive days of rising temperature within the range of hypothermic phase. The accuracy of this method was assessed by comparing the basal body temperature and urinary luteinizing hormone (LH) peak day. The estimated day fell within 2 days during which the ovulation will occur most probably in 36 cycles (69%) and fell within 4 days around most expectable ovulation time in 46 cycles (88%). This result provide some insight into the limitation of the basal body temperature which is influenced by factors other than progesterone in determining the time of ovulation. But our simple objective method is useful in some cases than any other method determined by vague criteria.

Adult↗
PubMed1980

Comparative evaluation of two methods of natural family planning in Columbia.

Results of a comparative study of the ovulation method (OM) and symptothermal method (STM) of natural family planning in Colombia are presented. Recruitment of volunteer couples began in August, 1976, and continued through December, 1978, during which time 566 couples were randomly assigned to one or the other of the two methods. The study included 3 to 5 months of training in the method assigned, after which the couples entered the follow-up phase of the study. They remained in follow-up until (1) they dropped out or (2) the study closed in June, 1979. Total dropout rates were high for both methods of natural family planning. One year after entry into the follow-up phase of the study, net pregnancy rates were 24.2% for OM users and 19.8% for STM users. Gross pregnancy rates were 29.2% for OM and 26.1% for STM. Differences in pregnancy rates between the two methods were not statistically significant.

Adolescent↗
PubMed2003

[Contraceptive practices among students].

Research has shown that university students tend to have specific sexual behaviour. It is worth mentioning that not much attention has been paid to pregnancy prevention practices among medical students nor has any survey been conducted in this matter. The purpose of this survey was to ascertain the frequency of contraceptive usage among students at Medical University of Warsaw. Specially designed questionnaires were anonymously self-administered by 634 female and 354 male medical students. 52.2% of the female students and 67.2% of the male students were sexually active at the time. 43.4% of the survey participants used condoms, while 26.3% used oral contraception pill (OCP) as contraceptive methods. Only 0.5% of those participants used intrauterine device. The survey result indicates an apparent dichotomy between the male and female students in terms of (appropriate) choice of the following contraceptive methods: condom, OCP, withdrawal, basal body temperature and Billings' methods.

Adult↗
PubMed1981

Overview of the biological aspects of the fertile period.

The fertile period of the human menstrual cycle consists of those days on which sexual intercourse can result in a pregnancy. Its duration is determined by the functional life span of the gametes within the female reproductive tract. Various mechanisms control gamete transport and survival in the reproductive tract of the human female. The ovarian hormones estradiol and progesterone have an important role in regulating these mechanisms. The nature of cervical mucus and its governing influences on sperm transport and survival following coitus are of prime importance in defining the fertile days of the menstrual cycle. Man's early concepts of the fertile period were often based on erroneous theories of the female reproductive cycle. It is only since the late 1920's that a true understanding of ovulation and the menstrual cycle has evolved. Current approaches in natural family planning to recognizing the fertile and infertile days of the menstrual cycle are discussed and evaluated.

Cervix Mucus↗