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PubMed1993

The borders of health promotion--a response to Nordenfelt.

Nordenfelt has presented a very useful philosophical analysis of the nature and ethics of health promotion. The first section of this paper is a response to the starting point of that analysis--the equation of health promotion with health promotion action. It is argued that this starting point leads to a serious ambiguity, and that this ambiguity is characteristic of other writing about health promotion, including that of the WHO. The second section of this paper explores the implications of this ambiguity, as it appears in the wider health promotion literature, for drawing the borders of health promotion.

Ethical Analysis↗
PubMed2005

Testing models of parental investment strategy and offspring size in ants.

Parental investment strategies can be fixed or flexible. A fixed strategy predicts making all offspring a single 'optimal' size. Dynamic models predict flexible strategies with more than one optimal size of offspring. Patterns in the distribution of offspring sizes may thus reveal the investment strategy. Static strategies should produce normal distributions. Dynamic strategies should often result in non-normal distributions. Furthermore, variance in morphological traits should be positively correlated with the length of developmental time the traits are exposed to environmental influences. Finally, the type of deviation from normality (i.e., skewed left or right, or platykurtic) should be correlated with the average offspring size. To test the latter prediction, we used simulations to detect significant departures from normality and categorize distribution types. Data from three species of ants strongly support the predicted patterns for dynamic parental investment. Offspring size distributions are often significantly non-normal. Traits fixed earlier in development, such as head width, are less variable than final body weight. The type of distribution observed correlates with mean female dry weight. The overall support for a dynamic parental investment model has implications for life history theory. Predicted conflicts over parental effort, sex investment ratios, and reproductive skew in cooperative breeders follow from assumptions of static parental investment strategies and omnipresent resource limitations. By contrast, with flexible investment strategies such conflicts can be either absent or maladaptive.

Animals↗
PubMed1995

Durations of adolescent sexual relationships before and after conception.

PURPOSE: To explore durations of young couples' relationships between meeting and first intercourse, before first conception and for two years following conception and the associations between these durations; to describe the association between these durations and the young women's perceptions of the nature of these relationships. METHODS: Three hundred and seven adolescent women were enrolled in a prospective study while presenting for pregnancy tests (the index event); they were followed for two years in three groups--those with negative tests, those who terminated the pregnancy and those who bore a child. Retrospective information about durations of relationships with first partners and partners at the index event was obtained at baseline; follow-up data was obtained on continuing relationships with the index partner. RESULTS: Durations of relationships between adolescent females and their partners in this sample, both before and after conception, are rarely brief; the median duration of a girl's prior relationship with a partner with whom she conceives is almost two years. Similarly, almost half of the sample is still in a relationship at two years following the index event, a proportion that rises to two-thirds among those who bore a child together. CONCLUSIONS: Contrary to common belief or practice, there may be sufficient time and commitment to include many male partners in intervention programs before, and in parenting programs after, a first conception--a practice which could have positive implications for both adolescent partners and, potentially, for their child.

Adolescent↗
PubMed2006

Prolactin responses to infant cues in men and women: effects of parental experience and recent infant contact.

We used a longitudinal design to test whether parental experience differentially affects the development of prolactin responses to infant cues in men and women. Couples provided two blood samples at three tests, one test just before their babies were born, and two tests during the early postnatal period (n=21). Nine couples repeated the tests near the birth of their second babies. In the 30 min between the two samples, couples listened to recorded infant cries at the prenatal test and held their baby (fathers) or a doll (mothers) at the postnatal tests. Blood samples were analyzed for prolactin concentrations. Prolactin values were then related to sex and parity differences as well as to questionnaire data concerning emotional responses to infant cries and previous infant contact. We found that (1) prior to the birth of both the first and second babies, women's prolactin concentrations increased after exposure to infant stimuli, whereas men's prolactin concentrations decreased; postnatal sex differences varied with parity; (2) women's prolactin reactivity did not change significantly with parental experience; (3) the same men's prolactin concentrations decreased after holding their first newborns but increased after holding their second newborns; this change was not gradual or permanent; (4) men reporting concern after hearing recorded infant cries showed a different postnatal pattern of prolactin change after holding their babies than men not reporting concern; and (5) men who had little contact with their babies just prior to testing had a more positive prolactin response than men who had recently held their babies for longer periods. Although parental experience appears to affect men's prolactin responses, differences in reactivity were also related to patterns of recent infant contact and individual differences in responses to infant cues.

Adult↗
PubMed1989

Applying research in practice: parenting the premature infant.

As the survival rate for premature infants increases, studies examining the interaction of parents with their premature infants have begun to appear in the literature. This review of the research can guide nurses in a variety of settings in clinical intervention strategies with these families.

Female↗
PubMedDate not supplied

Enhancing parent-child interaction with a prenatal couple intervention.

PURPOSE: To determine the effect of a prenatal couple group intervention on parent-child interaction postbirth. DESIGN: Quasiexperimental study. METHOD: A nonrandomized convenience sample of treatment group (TG) couples (n = 35) who attended an additional prenatal three-class series was compared to a control group (CG) from childbirth education classes on measures of videotaped parent-child interaction using the NCATS tool. The intervention class series was based on individual and couple changes in meaning/identity, roles, and relationship/interaction during the transition to parenthood. It addressed mother/father roles, infant communication abilities, and patterns of the first 3 months of life in a mutually enjoyable, possibility-focused way. RESULTS: T-tests and ANCOVA on NCATS scores between groups showed higher TG scores for mothers in sensitivity to cues, for fathers in social-emotional growth fostering, and for couple mean scores in social-emotional growth fostering, couple mean response to child distress, caregiver total, and caregiver-child total. Higher contingency scores were also found in the TG group. Fewer TG mothers and fathers fell below NCATS lower cutoff scores. CLINICAL IMPLICATIONS: Interventions that enhance mutual parent-child interaction through increased sensitivity to cues and responsiveness to infant needs or signals are important avenues for facilitating secure attachment, father and mother involvement, optimal development, and prevention of child abuse and neglect. The positive approach to this intervention invites couples to see themselves as developing with their infants over time, and to view their infants in new ways that will help develop satisfying, self-reinforcing patterns of interaction.

Adolescent↗
PubMed1999

Marital interaction in dyadic and triadic contexts: continuities and discontinuities.

While the systemic metaphor used in much current family research requires examination of the interrelationships among individuals, relationships, and the family as a whole, work on triadic relationships has generally been missing. This research examined the presence of second-order effects in marital interaction: changes in interactions between spouses when the husband-wife dyad became a parent-parent-child triad. Results indicated the presence of consistent context effects. Parental behavior when alone was not a good predictor of parental behavior in the presence of a child: behaviors occurred at significantly lower levels in parental dyads than in parent-parent-child triads, and correlations across the two contexts were less than consistent. Results are discussed in light of their implications for observations of families.

Adult↗
PubMed1975

Parental use of "positive contact" in child-rearing: its relationship to child behavior patterns and other variables.

In an investigation of child-rearing styles maternal use of "positive contact" was measured by asking the mother how often she played with the child, praised the child, and the like, and combining the responses into a score. Home observations on a sample of families revealed that mothers scoring above the mean used fewer communications in the form of directives and "unmodified power" and more communication in the form of praise and social conversation than mothers scoring below the mean. The mother's use of positive contact was related to her educational level, the birth order of the child and number of children in the family, the father's use of positive contact, and to a friendly outgoing pattern of child behavior. There was no relation to the mother's use of physical punishment, her protectiveness, her tendency to comply with the child's demands, or her child-rearing ideology and other attitudes. Child care workers are in a strategic position to educate parents about the importance of this kind of contact, especially with later-born children in large families.

Child Behavior↗
PubMed1987

Judicial involvement and conduct problems of fathers of infants born to adolescent mothers.

Data were obtained from retrospective review of 191 patient records to determine the extent and types of conduct problems among fathers of infants born to adolescent mothers. Ninety-eight fathers (51%) reported having committed a legal offense prior to the pregnancy. This rate appears substantially greater than rates of arrests of adolescents in the general population. When paired data for couples were analyzed, there was great similarity for severity of offense. Fathers, however, had committed more severe crimes than their partners. Male offenders came from families of lower socioeconomic status backgrounds and more single-parent families and were less frequently employed or in school (or graduated) than nonoffenders. They also had been more involved with various other problem behaviors, such as a previous pregnancy, drinking behavior, and behavior problems at school. There was a clustering of problem behaviors among offenders suggesting psychosocial maladjustment prior to the pregnancy. Our results suggest an association between fatherhood and delinquency among partners of adolescent mothers. It appears that these fathers form a heterogeneous group. Although some young fathers may be well adjusted, others have significant psychologic problems.

Adolescent↗