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PubMed1995

Investigation on breastfeeding and lactational amenorrhoeic women in mountainous areas of Pengxian County, Southwest China.

OBJECTIVE: To determine the distributions of the duration of postpartum breastfeeding, amenorrhoea, and contraceptive use, a community-based epidemiological investigation was carried out in Pengxian County, Southwest China in March 1992. METHODS: 1,040 women who had given live births during the reference period were interviewed. A current-status life table analysis was used. RESULTS: At 1 month postpartum, 100% infants were breastfed, at 6 months 95%, and at 12 months 82%. The level of amenorrhoea at 1 month postpartum was 90%, at 3 months 74%, at 6 months 62%, and at 12 months 36%. Contraceptive use was initiated at the second month postpartum with 19% of users, at 6 months 48%, and at 12 months 91%. CONCLUSION: The results indicate that at population level advising women to begin using contraceptives in 3 months postpartum is fairly reasonable, and the non-medicated IUD is recommended to be the first choice for the lactating women.

Adult↗
PubMed2002

The use of induced abortion as a contraceptive: the case of Mongolia.

After the onset of liberlization of the Mongolian economy in 1989, the laws governing abortion were relaxed. Furthermore, the availability and use of modern contraceptives also started to improve. The Demographic Survey of Mongolia, conducted during June-July 1996, collected information on different aspects of abortion. This paper presents the results on the prevalence of induced abortion and other related issues. It was found that in the absence of adequate knowledge and availability of modern contraceptives in Mongolia. the prevalence of induced abortion was relatively high. About 24% of women undergoing abortion were using it as a contraceptive because they thought it to be a safe method of contraception. Though the abortion rules stipulate counselling on the use of modern contraceptives just after an abortion, only 60% of women undergoing an abortion were given such counselling.

Abortion, Induced↗
PubMedDate not supplied

[Clinical characteristics of pain in chronic venous insufficiency].

Since the report of the 1st International Conference of Phlebology at Chambéry, devoted to venous pain, the subject has scarcely attracted attention apart from the meeting of the Benelux Society of Phlebology devoted to "pain in the legs". Pain due to superficial venous insufficiency has scarcely changed in nature for 30 years and remains one of the major presenting symptoms in phlebology. Acute or chronic, punctate or diffuse, modifications in this functional symptomatology have been accentuated, or have varied in their aspects under the influence of certain fashions or certain habits of modern life, i.e.: sedentary behaviour, underfloor heating, the use of oral contraceptives or of menopausal hormone replacement therapy. However, the distribution of the various aspects of venous pain remains in the same proportions as those described by the authors cited previously. While the etiological diagnosis must essentially eliminate all other causes: arterial, neurological, muscular, articular, it is essential not to neglect deep venous insufficiency of the gemellar veins, often responsible for a wide range of symptomatology and still all too often neglected. The pathogenesis of this pain not only involves the concept of pain receptors but also the appearance of algogenic metabolites at the site of the microcirculatory unit, to which endothelial cells are particularly sensitive during stasis. In fact, pain is the expression of disorders concerning local exchanges, whether thermal, pressure, metabolic or hemorheological. It is the alarm bell of venous insufficiency and merits the attention of the phebologist who must thus undertake active treatment before problems become irreversible.

Chronic Disease↗
PubMedDate not supplied

What do you get when you fall in love?: Warehouse Youth Health Centre chlamydia audit.

OBJECTIVE: The aim of the chlamydia audit was to determine the rate of positive diagnosis of chlamydia trachomatis in young people aged 12 to 25 years of age who were tested at the Warehouse Youth Health Centre, Sydney, Australia, in 2001 and to review current practice relating to chlamydia testing. DESIGN: A retrospective study was conducted on the medical records of clients identified through the pathology register as having a chlamydia test during 2001 from 1 January to 31 December 2001. The data were descriptively analysed. SETTING: The Warehouse Youth Health Centre, an FPA (Family Planning Australia) Health service which targets young people in Western Sydney, New South Wales, Australia. RESULTS: Chlamydia tests were performed on 194 clients at the Warehouse Youth Health Centre in 2001. Tests were performed on 179 (92.3%) female and 15 (7.7%) male clients. The overall positivity rate was 8.8% (17/194). Of the positive chlamydia tests 82.4% (14/17) were female clients and 17.6% (3/17) were male clients. The most common reasons for the clinician or client requesting the chlamydia tests were because the client was symptomatic, had unprotected sexual intercourse or had multiple partners. CONCLUSION: The major recommendation from this audit is for chlamydia screening for all sexually active young people under the age of 25 years.

Adolescent↗
PubMed1985

Theophylline pharmacokinetics in adolescent females following coadministration of oral contraceptives.

The influence of 3-9 months of combined low dose oral contraceptives on theophylline pharmacokinetics was studied in 10 adolescent females (age 15-18 years, mean +/- SD 17 +/- 1) and compared to 10 age-matched control subjects (age 13.8-19 years, mean +/- SD 16.5 +/- 1.6). The distribution volume (0.44 +/- 0.06 L/kg in control vs. 0.44 +/- 0.09 L/kg oral contraceptive group), total body clearance (0.78 +/- 0.13 ml/kg/min vs 0.78 +/- 0.18 ml/kg/min) and elimination T 1/2 (402 +/- 78 min vs. 409 +/- 126 min) were identical in the two groups. It appears that during the first 3-9 months of low dose oral contraceptive treatment, these steroids do not alter the pharmacokinetic behaviour of theophylline in adolescent females.

Adolescent↗
PubMed2005

Effects of making emergency contraception available without a physician's prescription: a population-based study.

BACKGROUND: Timely access to emergency contraception has the potential to reduce the number of unwanted pregnancies and subsequent abortions. A public health policy initiative in British Columbia beginning in December 2000 allowed pharmacists to provide emergency contraceptives (ECs) without a prescription. We sought to determine changes in EC use after the policy was introduced and to analyze EC use with data generated by the policy. METHODS: All Ovral, Preven and Plan B EC prescriptions from Jan. 1, 1996, to Dec. 31, 2003, were identified through the BC PharmaNet and Medical Services Plan administrative databases and the data analyzed to determine changes between 1996 and 2002. Changes over time were determined in the frequency of EC provision, choice of EC agent, frequency of EC use by age group, repeat use and geographic distribution of EC prescription for the pre- and post-policy periods. Anonymized patient-specific data from treatment consent forms were used to describe the reason for EC use, interval between unprotected intercourse and EC prescription, proportion prescribed for immediate or future use, referrals for regular birth control and STD screening and concomitant antiemetic use. Consent data also provided the time in the menstrual cycle that the EC was requested. RESULTS: The number of EC prescriptions increased from a pre-policy mean of 8805 (99% confidence interval 7823-9787) in the years 1996 to 2000 to a post-policy total in 2002 of 17 794. Physicians prescribed the levonorgestrel regimen (Plan B) less frequently than did pharmacists. The frequency of EC use was highest among women aged 20-24 years across all study years, and all age groups demonstrated a post-policy increase in use. On average, 2.1% of the women received an EC 3 or more times a year over the period of the study. More women in urban regions received ECs than women in more rural areas of the province. Analysis of pharmacist treatment consent forms used in 2001 and 2002 showed that 56.2% of women receiving an EC reported using a method of birth control that had failed, 55.7% of pharmacist-provided ECs were obtained within 24 hours after unprotected intercourse, 1.1% of ECs were obtained for future use, antiemetics were provided to 57.7% of women receiving the Yuzpe regimen (Ovral, Preven) and to 20.5% of women receiving levonorgestrel, and women tended to seek ECs when unprotected intercourse occurred at the time of highest risk of pregnancy in their menstrual cycle. Women in greatest financial need obtained ECs more frequently from physicians than from pharmacists. INTERPRETATION: The policy change that granted pharmacists authority to provide ECs to women without a physician's prescription did not simply expand EC availability but was associated with an overall increase in EC use in the province.

Adolescent↗
PubMed2003

Potential bias due to excluding oral contraceptive users when estimating menstrual cycle characteristics.

Women take oral contraceptives for contraception but also for menstrual dysfunction treatment. This raises the question of whether or not women with menstrual dysfunction are underrepresented in analyses of menstrual function because oral contraceptive users are excluded. To explore this, the authors examined the history of oral contraceptive use among 1322 Black women and White women, aged 35-49 years, who had been randomly selected from a large health plan's membership in Washington, DC, between 1996 and 1999. The women reported whether they took oral contraceptives during their teens, twenties, and thirties, and if so, the reason they took them (prevent pregnancy, medical problem, or both). They also reported their usual menstrual cycle length when not using oral contraceptives during these decades. The prevalence of oral contraceptive use strictly for medical problems was low for both Black women and White women (4-9% of women), and the distributions of usual cycle length were similar for women who did and did not take oral contraceptives. Thus, there was little evidence of substantial bias of estimates of cycle characteristics caused by excluding oral contraceptive users from analyses of menstrual function. However, our data indicate that, with only a few additional questions, information on usual menstrual cycle characteristics can be collected and used to evaluate bias in any given study.

Adult↗
PubMed1981

Brazil.

Explore the source record for details and available documents.

Age Distribution↗
PubMed1984

The epidemiology of ovarian cancer in Greece: a case-control study.

One hundred and fifty women with common malignant epithelial tumors of the ovary (cases) and 250 comparison women hospitalized for various orthopedic conditions were interviewed regarding demographic, reproductive, socio-economic and biomedical characteristics, including their use of coffee, tobacco, alcohol, drugs and exogenous estrogens. The data were analyzed with standard X2 procedures and by modelling relative risk (r) through multiple logistic regression. The main results are as follows: women with ovarian cancer had fewer liveborn children (one-tailed, P congruent to 0.13, for women with 4+ children, r = 0.6) and later menarche (P congruent to 0.02, for women with age at menarche 15+, r = 1.9) and menopause (P congruent to 0.07, for women with age at menopause 50+, r = 1.5); they were slightly taller and heavier (P congruent to 0.15 and 0.30 respectively); they belonged to smaller sibships (P congruent to 0.05); they reported more frequently than controls familial occurrence of ovarian, endometrial and breast cancer (P less than 0.05 in each instance); they were regular consumers of alcoholic beverages more frequently than controls, and the excess was both statistically significant (P congruent to 0.02) and dose-related; they were regular users of coffee slightly more frequently than controls (r = 1.2) but the excess was small and it was neither statistically significant nor dose-related (P congruent to 0.27); and they reported less frequently than controls the use of oral contraceptives (relative risk for users, 0.4; 95% confidence interval, 0.1-1.1).

Adult↗
PubMed2005

Fertility behavior and reproductive outcomes among young Guatemalan adults.

Fertility rates have declined in many developing countries and this has implications for health and development of subsequent generations. Guatemala has the highest fertility rates in Central America. Reproductive histories were obtained by interview in 2002-04, in a cohort of 779 women and 647 men who had participated as young children in a nutrition supplementation trial in Guatemala conducted between 1969 and 1977. Most women (77%) and men (79%) are currently married. Among the 700 women and 524 men reporting at least one birth, mean age at first birth was 20.7 +/- 3.8 years and 23.1 +/- 3.9 years respectively. Knowledge (> 80%) and use (approximately 70%) of modern contraceptive methods is fairly high; knowledge increases with parental socioeconomic status (SES) as measured in 1975. Younger respondents have experienced fewer pregnancies and live births compared with older respondents; age-specific fertility rates between 20 and 24 years were 294, 249, 236, and 261 births per 1,000 women, respectively, for women born from 1962-65, 1966-69, 1969-73, and 1974-77. Women in the top tertile of parental SES have had significantly fewer pregnancies (3.3) compared with those in the middle (3.7) and lower (3.8) tertiles. Migrants to Guatemala City reported greater knowledge of contraceptive methods, fewer pregnancies and living children, higher age at first birth, and more pregnancy and newborn complications as compared with cohort members who remained in the original villages (p < .05 for each comparison). Fertility rates, especially between 20 and 24 years, have declined over time. Differences in reproductive behaviors by parental SES and current residence suggest the role of social transitions in determining family formation in Guatemala.

Abortion, Induced↗
PubMed1990

Contraceptive steroids as a risk factor for hepatocellular carcinoma: a case/control study in South African black women.

The role of contraceptive steroids in the etiology or pathogenesis of hepatocellular carcinoma in urban South African black women was investigated in a hospital-based case and control study. Participating were 46 women, 19 to 54 yr old, with carcinoma, and 92 matched controls. South African blacks have a high incidence of hepatocellular carcinoma, and urban black women have used contraceptive steroids fairly widely for a number of years. Use of contraceptive steroids for longer than 6 mo (mean duration 46.7 mo) was not found to pose a risk for development of hepatocellular carcinoma in this population--relative risk 0.8 (95% confidence interval [C.I.] 0.4 to 1.7). This was also true of use for longer than 8 yr--relative risk 0.6 (95% C.I. 0.2 to 2.5), and if a combination of an estrogen and a progestogen or a progestogen alone was used (relative risk 1.7 [95% C.I. 0.7 to 4.2] and 0.4 [95% C.I. 0.1 to 1.2], respectively). Chronic hepatitis B virus infection was confirmed to have an etiological association with hepatocellular carcinoma, but there was no evidence that contraceptive steroids acted as a co-carcinogen with the virus or, conversely, that they played a causal role in patients negative for hepatitis B surface antigenemia. We cannot, however, exclude the possibility that contraceptive steroids may play a causal role in hepatocellular carcinoma in black women who have never been infected with the hepatitis B virus. Nor was there evidence that contraceptive steroids acted in concert with either cigarette smoking or chronic alcohol abuse in hepatocarcinogenesis.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1990

Pregnancy, breast feeding, and oral contraceptives and the risk of epithelial ovarian cancer.

To quantify the effects of cumulative months of pregnancy, breast feeding, and oral contraceptive use on the risk of developing epithelial ovarian cancer, the authors used data collected for the Cancer and Steroid Hormone Study--a multicenter, population-based, case-control study. Detailed reproductive histories were obtained from 436 women aged 20-54 with epithelial ovarian cancer newly diagnosed between December 1980 and December 1982, and from 3833 women aged 20-54 selected at random from the same geographic areas. Estimated relative risks of epithelial ovarian cancer were 0.6 (95% confidence interval (CI) 0.5-0.8) for women who had ever been pregnant, 0.6 (95% CI 0.5-0.8) for women who had ever breast fed, and 0.5 (95% CI 0.5-0.7) for women who had ever used oral contraceptives. Logistic regression analysis revealed a strong trend in decreasing risk of epithelial ovarian cancer with increasing cumulative months of pregnancy; this effect was less pronounced in women aged 50-54 than in younger women. In contrast, a marked reduction in risk was associated with ever having breast fed or used oral contraceptives, while the decrease in risk from additional months of either of these exposures was less than that for pregnancy.

Adult↗
PubMed2002

Living conditions, contraceptive use and the choice of induced abortion among pregnant women in Denmark.

AIMS: This study describes women with induced abortion and thereby elucidates how living conditions and contraceptive failure are associated with the choice of induced abortion in a population of Danish pregnant women. METHODS: The study population consisted of pregnant women attending Odense University Hospital. They were categorized in two groups: women with induced abortion (n = 373) and a reference group consisting of women with spontaneous abortion and antenatal care attendees (n = 2,176). The two groups were compared by use of a case-referent design. The variables studied comprise age, number of children, partner relationship, education, occupation, economical situation, and contraceptive use. RESULTS: Being single, aged 15-24 or 35 and above, having either no children or two or more children, and the experience of contraceptive failure were parameters which were associated with the choice of induced abortion. Among married/cohabiting women aged 20-39 with fewer than two children, being under education, unemployed, on leave, or willing to invest effort in obtaining a more satisfying job influenced the choice of induced abortion. CONCLUSIONS: To reduce the number of induced abortions, it should be recognized that many women both want to establish a family with the number of children they wish for and to have a satisfying job with influence and challenge.

Abortion, Induced↗
PubMed1991

Prescribing oral contraceptives and the medical record.

Scripts for the oral contraceptive pill are written by general practitioners every day, but how organised are their prescribing habits? The author describes the use of a supplementary insert to medical records to aid the busy general practitioner.

Clinical Protocols↗
PubMed1991

The influence of blood donation on iron stores assessed by serum ferritin and hemoglobin in a population survey of 1359 Danish women.

The general impact of blood donation on iron status was studied in a population survey comprising 1359 nonpregnant Danish women in age cohorts of 30, 40, 50, and 60 years; 809 were premenopausal and 550 postmenopausal; 180 (13%) were blood donors. Iron stores were assessed by serum (S)-ferritin and hemoglobin (Hb). Hb levels were not significantly different in donors: mean 137 +/- 10 (SD) g/l (8.5 +/- 0.6 mmol/l) compared with nondonors, 139 +/- 11 g/l (8.6 +/- 0.7 mmol/l). Values less than 121 g/l (7.5 mmol/l) were observed in 3.3% of donors vs 3.8% of nondonors. Correlations between S-ferritin and Hb were without practical relevance: rs = 0.29, p less than 0.0001 in donors vs rs = 0.22, p less than 0.0001 in nondonors. Blood donation had a profound influence on iron status, especially in the premenopausal women population. Donors had lower S-ferritin than nondonors in all age-groups and in pre- and postmenopausal groups (p less than 0.001 in all groups). Premenopausal donors had a median S-ferritin of 31 micrograms/l vs 39 micrograms/l in nondonors, postmenopausal donors of 47 micrograms/l vs 72 micrograms/l in nondonors. S-ferritin values less than 15 micrograms/l (i.e., depleted iron stores) were observed in 31.7% of premenopausal donors vs 15.2% of nondonors, and in 7.0% of postmenopausal donors vs 2.9% of nondonors. Iron deficiency anemia (i.e., S-ferritin less than 15 micrograms/l and Hb less than 121 g/l) was seen in 2.8% of donors vs 1.5% of nondonors. Donors using oral contraceptives had higher S-ferritin, median 33 micrograms/l compared with nonusers, 22 micrograms/l, and a lower frequency of depleted iron stores, 29% vs 39%. Ideally, the frequency of phlebotomy should be adjusted according to S-ferritin as well as Hb levels. If Hb is used as single criterion for donation, only donors with predonation values greater than or equal to 124-125 g/l should be allowed to undergo phlebotomy.

Adult↗