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PubMed1982

The adolescent boy and girl: first and other early experiences with intercourse from a representative sample of Swedish school adolescents.

Attitudes and sexual experiences among adolescents have been studied using data from a representative sample of pupils in tenth grade in Uppsala, the fourth largest city in Sweden. Sex differences in coital experience, coital frequency, and evaluation of coital frequency are analyzed. The importance of traditional sex roles is discussed, and the differential sexual socialization of boys and girls is commented on. The data help convey a picture of an adolescent boy who feels deprived of heterosexual outlets and whose sexual relations with girls are sudden, unplanned, and characterized by limited emotional involvement; the adolescent boy is also quite discontent. This picture is contrasted with that of the girls, about whom it is found that, compared with the boys, a greater proportion have coital experience, the average age at first intercourse is lower, and the average number of experiences with intercourse during the last month is higher; to a greater extent than the boys, the girls are satisfied with how often they have intercourse.

Adolescent↗
PubMedDate not supplied

Induced abortion: microbiological screening and medical complications.

Preoperative cervical screening of 1,193 women undergoing first-trimester induced abortions yielded Chlamydia trachomatis in 11.7%, Neisseria gonorrhoeae in 0.8%, Mycoplasma hominis in 22.1%, Ureaplasma urealyticum in 10.1%, herpes simplex virus in 0.9% and Group B streptococci (GBS) in 2.9%. C. trachomatis and N. gonorrhoeae were especially frequent among teenagers. A total of 2.2% (26 women) developed postoperative pelvic inflammatory disease (PID) and 0.9% (13 women) endometritis. PID developed significantly more often in untreated chlamydia-positive (22.7%), M. hominis-positive (8.1%) and GBS-positive (6.1%) women than in women without these microbes (0.5%) (p less than 0.05). Prompt treatment of the chlamydia infection before or in connection with the abortion procedure significantly decreased the likelihood of developing chlamydial PID from 22.7% to 2.1% (p less than 0.001). The study confirms the importance of preoperative screening for chlamydia and suggests screening for M. hominis and GBS as well. The results of screening should be available before the abortion, allowing patients to be treated pre- or peroperatively.

Abortion, Induced↗
PubMed1992

Iron status markers, serum ferritin and hemoglobin in 1359 Danish women in relation to menstruation, hormonal contraception, parity, and postmenopausal hormone treatment.

Iron status was assessed by measuring serum (S-) ferritin and hemoglobin (Hb) 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. Median age for menarche was 14 years, for menopause (artificial and natural) 48 years. Premenopausal women had lower S-ferritin (median 37 micrograms/l) than postmenopausal women (median 71 micrograms/l; p less than 0.0001). Of the premenopausal women, 17.7% had S-ferritin less than 15 micrograms/l (i.e., depleted iron stores), and 23.1% S-ferritin of 15-30 micrograms/l (i.e., small iron stores). Corresponding figures in postmenopausal women were 3.3% and 10.3%. Hb values in premenopausal women were mean 137 +/- 10 (SD) g/l (8.5 +/- 0.6 mmol/l) vs. 140 +/- 10 g/l (8.7 +/- 0.6 mmol/l) in postmenopausal women (p less than 0.0001); 4.1% of pre- and 3.3% of postmenopausal women had values less than 121 g/l (7.5 mmol/l). Iron deficiency anemia (i.e., S-ferritin less than 15 micrograms/l and Hb less than 121 g/l) was found in 2.6% of pre- and 0.36% of postmenopausal women. Premenopausal multipara had lower S-ferritin than nulli- and unipara (p less than 0.04). The use of oral contraceptives had a marked influence on iron stores; premenopausal women taking the pill had higher S-ferritin and a lower frequency of depleted iron reserves than nonusers (p less than 0.01). Postmenopausal estrogen treatment had no influence on S-ferritin or Hb.

Adolescent↗
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↗
PubMed1988

Determinants of short-term fluctuations in nuptiality in Sweden, 1751-1913: application of multivariate ARIMA models.

"This study examines the determinants of short-term fluctuations in nuptiality in Sweden from 1751 to 1913, using ARIMA [Auto Regressive Integrated Moving-Average] models.... The following general patterns prevailed throughout the period 1751-1913: both better economic conditions (good harvests and lower rye prices) and higher mortality (leading to more remarriages, and enabling first marriages through inheritance) were followed by higher nuptiality. In addition, emigration of single persons after 1850 was inversely related to nuptiality." (SUMMARY IN FRE)

Agriculture↗
PubMed1990

War demography: the impact of the 1808-09 war on the civilian population of Aland, Finland.

"A pre-industrial population crisis caused by a war is examined using Finnish historical records. During the War of Finland (1808-09) the Swedish military deployed on the Aland Islands helped spread infectious diseases among the civilian population. The result was a short but intense period of high mortality. This article focuses on the short-term demographic impact of this crisis. Changes in age-specific and sex-specific mortality, fertility, and nuptiality are explored....A projection, assuming that the crisis did not occur, indicates that Aland's population losses were never compensated." (SUMMARY IN FRE)

Age Factors↗
PubMed1986

Leaving home: living arrangements of young people in six West-European countries.

"The timing with which young people leave their parents' home is a critical element in household formation rates. Direct data on this transition are scarce. Information on the current living arrangements of 16-24 year-olds collected in a 1982 EEC [European Economic Community] Survey provides some insights. The data suggest quite large cross-national variations in the timing of leaving home and particularly marked differences in the living arrangements of young people. Reasons for the variation, particularly housing-market differences, are postulated." The data concern Denmark, France, Ireland, the Netherlands, the Federal Republic of Germany, and the United Kingdom. (SUMMARY IN FRE)

Demography↗
PubMed1988

Real wages, alcohol consumption and mortality in Sweden, 1861-1913.

Factors affecting the decline in mortality among Swedish men that occurred during the latter part of the nineteenth century are analyzed. In addition to the impact on mortality of changes in real wages, the author develops the hypothesis that a decline in alcohol consumption was a contributing factor. These relationships are explored using time-series analyses on official data for the period 1861-1913. The results indicate that "real wages as well as alcohol consumption per capita had a statistically significant effect on male mortality. When the alcohol predictor was omitted in the model, the wage effect did not reach statistical significance. The decline in male mortality during the study period was, on the average, about one per cent per year. According to the results, a good half of this decrease is attributable to the trends in real wages and alcohol consumption." (SUMMARY IN FRE)

Alcohol Drinking↗
PubMed1988

The impact of first-birth timing on divorce: new evidence from a longitudinal analysis based on the Central Population Register of Norway.

"The association between divorce risks in first marriage and the timing of the first birth is inspected in a life-table analysis of registered birth and marriage histories from Norway. One of the main conclusions is that the high propensity to divorce among women who have had a premarital birth is not confined to those who marry someone other than the father of their child. Also, women who have had a premarital child with their husband, run a much higher risk of marital breakup than do those who had their first baby in wedlock.... It is argued that couples who postpone childbearing beyond two years of marriage may have particularly low divorce rates." (SUMMARY IN FRE)

Birth Order↗
PubMed1989

The demographic effect of mixed marriages.

This paper gives a formal expression for the demographic effect of mixed marriages, i.e., the effect on the number of children, and thereafter illustrates the long-term effects of these marriages with a simple simulation model.

Culture↗
PubMed1996

Socio-economic differences in mortality. A life course approach.

"Differential mortality in Norway has been studied on the basis of a sample of data derived from the linkage of the 1960, 1970, and 1980 censuses to vital registration records. Based on the hypothesis that the determinants of survival act in interaction, two models are proposed. The first is based on states defined at each observation period by the conjunction of attributes characterizing each individual. The second model considers the chronological order of the states. Logistic regression applied to the latter shows that the most favourable male and female life trajectories are those for married people belonging to rather privileged categories. There are however some differences by sex, as favourable trajectories concern both economically inactive females and employees." (SUMMARY IN FRE)

Data Collection↗
PubMed1987

Male mortality from ischaemic heart disease in Finland: relation to region of birth and region of residence.

"The purpose of the study is to shed light on the causes of the large difference in mortality from ischaemic heart disease (IHD) between East and West Finland. The study is based on the death certificate records on deaths from IHD in 1971-1975 among Finnish men aged 35-64. These records were linked with the records on persons in the 1970 census. Mortality from IHD is analyzed simultaneously by region of birth and region of residence, controlling for several socio-economic and demographic variables, by means of log-linear models. The analysis shows that being born in East Finland and living there both increase the risk of IHD, but that being born in East Finland is a more important risk factor than is living there." (SUMMARY IN FRE)

Cause of Death↗
PubMed1996

[Differential mortality by cause of death in Norway, 1970-1985].

"Data from the three Norwegian censuses of 1960, 1970 and 1990 combined with information on migration status and survival between 1970 and 1985 have permitted the estimation, through logistic modelling, of the predictive abilities of different socio-economic indicators on the risk of death by cause. The risk has also been measured for each indicator separately, according to the path followed by the individual between 1960 and 1980. The study shows very strong disparities in risk both for men and for women, as well as a moderate reduction in differences in risk by age. The study also shows, among other things, the importance of taking account of socio-economic information covering as long a period as possible and to consider the cause of death in the study of differential mortality through a life-history approach." (SUMMARY IN ENG)

Age Factors↗