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1.
Omega (Westport) ; 65(3): 213-9, 2012.
Article in English | MEDLINE | ID: mdl-23057246

ABSTRACT

This study examined the relationship between affiliation with one of three denominations within Judaism representing a conservative-liberal continuum of Orthodox, Conservative, and Reform Judaism. The criterion for affiliation was burial in a cemetery maintained by these denominations. Longevities of married congregants born 1850-1910 were compared, controlling for birth year. Orthodox Jews had the shortest life spans (77 years); Conservative and Reform Jews had very similar life spans (80.7 years). Differences in years of survival of husbands after death of a spouse did not differ significantly. Reform widows survived longest (16.5 years) after death of a spouse. Conservative and Reform widows did not differ significantly from one another.


Subject(s)
Cemeteries/history , Jews/history , Judaism/history , Longevity , Marriage/history , Spouses/history , Aged , Female , History, 19th Century , History, 20th Century , Humans , Male , Middle Aged , Religion and Psychology , United States
2.
J Minim Invasive Gynecol ; 19(4): 459-64, 2012.
Article in English | MEDLINE | ID: mdl-22658475

ABSTRACT

STUDY OBJECTIVE: To estimate the incidence of and factors associated with hysterectomy subsequent to endometrial ablation. DESIGN: Retrospective cohort study (Canadian Task Force classification II-2). SETTING: Gynecology practice. PATIENTS: Women who underwent endometrial ablation from January 2003 to June 2010, with a minimum follow-up of 9 months. INTERVENTIONS: Endometrial ablation and hysterectomy. MEASUREMENTS AND MAIN RESULTS: Of 1169 women, 157 (13.4%) underwent hysterectomy subsequent to endometrial ablation. Women who underwent subsequent hysterectomy were significantly younger at ablation (mean [SD; 95% CI] 39.0 [6.8; 38.0-40.1] years vs 41.4 [7.0; 41.0-41.9] years; p < .001) and were more likely to have previously delivered via cesarean section (26.3 vs 18.1%; p = .02). The rate of hysterectomy was significantly associated with the type of ablation performed: 33.0% for rollerball vs 16.5% for thermal balloon (p = .003), 11.0% for radiofrequency (p < .001), and 9.8% for cryoablation (p < .001). Time to hysterectomy also differed significantly based on the type of ablation performed (p = .006). Adenomyosis was present in 44.4% of hysterectomy specimens. CONCLUSION: With a mean follow-up of 39 months, 13.4% of women underwent hysterectomy subsequent to ablation. Women who were younger at ablation had an increased likelihood of hysterectomy. Rate and time to hysterectomy were associated with the type of ablation performed.


Subject(s)
Endometrial Ablation Techniques/statistics & numerical data , Endometriosis/surgery , Hysterectomy/statistics & numerical data , Uterine Diseases/surgery , Adult , Age Factors , Catheter Ablation , Cesarean Section , Chi-Square Distribution , Cryosurgery , Female , Humans , Kaplan-Meier Estimate , Menorrhagia/surgery , Middle Aged , Proportional Hazards Models , Retrospective Studies , Risk Factors , Time Factors
3.
Fertil Steril ; 97(1): 107-10, 2012 Jan.
Article in English | MEDLINE | ID: mdl-22100166

ABSTRACT

STUDY OBJECTIVE: To determine the impact of sonographically identified large uterine fibroids (>5 cm in diameter) on obstetric outcomes. DESIGN: Retrospective cohort study. SETTING: University teaching hospital. PATIENT(S): Women with singleton gestations (n = 95) noted to have uterine fibroids on obstetric ultrasonography from September 2009 through April 2010 and age-matched controls (n = 95). INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Obstetric outcomes including short cervix, preterm premature rupture of membranes, and preterm delivery. RESULT(S): Compared to women with no fibroids or small fibroids (≤5 cm), women with large fibroids (>5 cm) delivered at a significantly earlier gestational age (38.6 vs. 38.4 vs. 36.5 weeks). Short cervix, preterm premature rupture of membranes, and preterm delivery were also significantly more frequent in the large fibroid group, and were associated with number of fibroids >5 cm in diameter. Blood loss at delivery was significantly higher in the large fibroid group (486.8 vs. 535.6 vs. 645.1 mL), as was need for postpartum blood transfusion (1.1 vs. 0.0 vs. 12.2%). CONCLUSION(S): Women with large uterine fibroids in pregnancy are at significantly increased risk for delivery at an earlier gestational age compared to women with small or no fibroids, as well as obstetric complications including excess blood loss and increased frequency of postpartum blood transfusion.


Subject(s)
Leiomyoma/epidemiology , Pregnancy Complications, Neoplastic/epidemiology , Pregnancy Outcome/epidemiology , Uterine Neoplasms/epidemiology , Adult , Blood Transfusion/statistics & numerical data , Cohort Studies , Databases, Factual/statistics & numerical data , Female , Fetal Membranes, Premature Rupture/epidemiology , Humans , Leiomyoma/diagnostic imaging , Postpartum Hemorrhage/epidemiology , Postpartum Hemorrhage/therapy , Pregnancy , Pregnancy Complications, Neoplastic/diagnostic imaging , Premature Birth/epidemiology , Retrospective Studies , Risk Factors , Severity of Illness Index , Ultrasonography , Uterine Cervical Incompetence/epidemiology , Uterine Neoplasms/diagnostic imaging
4.
J Perinat Med ; 40(3): 237-9, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22150013

ABSTRACT

AIMS: To determine the effects of increasing maternal age and related maternal and possibly paternal factors. METHODS: A US database of more than 8 million births was analyzed to determine the relationships between maternal age, maternal ethnicity, marital status, maternal smoking and paternal age on twinning rates. RESULTS: Twinning rates increased proportionally with maternal age. African American women had a higher twinning rate than Caucasian women. Hispanic, Asian and Native American women had comparatively lower rates than Caucasians. After controlling for ethnicity and other maternal factors, increasing maternal age was still related to increased twinning rates. Increased paternal age had a small but significant independent association with an increased rate of twinning. CONCLUSIONS: Both increasing maternal and paternal age are related to increased rates of twinning. This age effect is independent of other factors also associated with twinning.


Subject(s)
Maternal Age , Paternal Age , Pregnancy, Twin , Adult , Black or African American , Asian , Female , Hispanic or Latino , Humans , Incidence , Indians, North American , Male , Pregnancy , Pregnancy, Twin/statistics & numerical data , United States/epidemiology , White People , Young Adult
5.
Psychol Rep ; 108(3): 688-92, 2011 Jun.
Article in English | MEDLINE | ID: mdl-21879614

ABSTRACT

Researchers have noted a physical resemblance (homophily) between human sex partners. To date, these studies and their related interpretations have been based on heterosexual couples. The present study compared physical resemblances between gay, lesbian, and heterosexual couples, using 40 photographs of each from national newspapers, which were rated by 34 men and 56 women (M age = 53 yr., SD = 12.1). Half the photographs were of actual couples and half were randomly mixed within each group. Actual couples were rated as significantly more similar in appearance than random pairings of people. Ratings of similarity were significantly higher (indicating greater perceived homophily) for gay couples than heterosexual couples, while there was no statistically significant difference in similarity ratings between lesbian couples versus gay and heterosexual couples. The results were interpreted in terms of evolutionary and parental imprinting hypotheses.


Subject(s)
Face , Homosexuality, Female/psychology , Homosexuality, Male/psychology , Individuality , Pattern Recognition, Visual , Sexual Partners/psychology , Adult , Association , Female , Heterosexuality/psychology , Humans , Male , Marriage/psychology , Middle Aged , Photography
6.
Menopause ; 18(8): 893-6, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21540755

ABSTRACT

OBJECTIVE: The aim of this study was to determine the effects of 10 and 20 mg/day of escitalopram on objectively recorded hot flashes and on the rectal temperature threshold for sweating. METHODS: Two studies were performed: 16 women received 10 mg/day and 26 women received 20 mg/day escitalopram for 8 weeks. They were randomly assigned in equal numbers to receive active drug or placebo in a double-blind fashion. Hot flash frequency was measured with an ambulatory recorder during the first 3 weeks and during the 8th week of the study. Rectal temperature threshold for sweating was measured during the 1st and 8th weeks of the study using published methods. RESULTS: In the first study, there were no significant effects whatsoever for any measure. In the second study, the escitalopram group showed an average decline in hot flash frequency of 14.4%, whereas the placebo group showed an average increase of 6.7% (P < 0.05). However, there were no significant effects across time for either group. There were no significant effects whatsoever for rectal temperature sweating thresholds. CONCLUSIONS: Escitalopram at 10 or 20 mg/day is not effective in the treatment of menopausal hot flashes.


Subject(s)
Citalopram/administration & dosage , Hot Flashes/drug therapy , Selective Serotonin Reuptake Inhibitors/administration & dosage , Severity of Illness Index , Women's Health , Dose-Response Relationship, Drug , Double-Blind Method , Female , Hot Flashes/prevention & control , Humans , Menopause/drug effects , Quality of Life/psychology , Treatment Outcome
7.
Menopause ; 18(8): 897-900, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21522045

ABSTRACT

OBJECTIVE: The aim of this study was to determine if heart rate variability changes during hot flashes recorded during sleep. METHODS: This study was performed in a university medical center laboratory with 16 postmenopausal women demonstrating at least four hot flashes per night. Polysomnography, heart rate, and sternal skin conductance to indicate hot flashes were recorded in controlled, laboratory conditions. RESULTS: For the frequency bin of 0 to 0.15 Hz, spectral power was greater during waking compared with non-rapid eye movement sleep and less during stages 3 and 4 compared with stages 1 and 2. Power was greater during hot flashes compared with subsequent periods for all hot flashes. Power was greater during hot flashes compared with preceding and subsequent periods for those recorded during stage 1 sleep. For waking hot flashes, power in this band was higher before hot flashes than during or after them. CONCLUSIONS: These data are consistent with our theory of elevated sympathetic activation as a trigger for menopausal hot flashes and with previous work on heart rate variability during the stages of sleep.


Subject(s)
Autonomic Nervous System/physiopathology , Heart Rate , Hot Flashes/physiopathology , Sleep , Arrhythmias, Cardiac/diagnosis , Electrocardiography , Female , Galvanic Skin Response , Hemodynamics , Humans , Middle Aged , Polysomnography , Severity of Illness Index , Women's Health
8.
Fertil Steril ; 95(3): 1037-41, 2011 Mar 01.
Article in English | MEDLINE | ID: mdl-21227412

ABSTRACT

OBJECTIVE: To study the biochemical and morphologic implications of different hormonal levels on endometrial development during assisted reproductive technology (ART) cycles. DESIGN: Prospective, controlled study. SETTING: University center. PATIENT(S): Eleven women during a natural cycle (controls) and 11 oocyte donors during an ART cycle (treated). INTERVENTION(S): At the time consistent with day-3 ET, a transvaginal ultrasound, an endometrial biopsy, and blood sampling were performed. Morphology and thickness of the endometrial stripe were recorded. Real-time reverse transcriptase-polymerase chain reaction was used to measure messenger RNA (mRNA) levels for estrogen receptor (ER)-α, ER-ß, P receptor (PR)-A, and PR-B in the endometrial tissue. MAIN OUTCOME MEASURE(S): To evaluate morphologic and biochemical endometrial development. RESULT(S): Endometrium was mostly trilaminar (proliferative-like pattern) and thicker in the treated group, as opposed to homogeneous and thinner in the controls. The PR-B mRNA expression increased 41% in treated patients; PR-A mRNA expression, instead, was unchanged. Serum E(2) and P were higher in the treated group than in controls. In contrast, FSH and LH levels were lower in the treated group. CONCLUSION(S): When compared with natural cycles, exposure of the endometrium to high hormone levels during ovarian stimulation significantly increased PR-B receptor expression at the time of ET. Concurrently, a proliferative-like endometrial pattern persisted. These findings reflect a delayed endometrial development in ART.


Subject(s)
Endometrium/cytology , Endometrium/physiology , Infertility, Female/physiopathology , Ovulation Induction/methods , Reproductive Techniques, Assisted , Adult , Biopsy , Endometrium/diagnostic imaging , Estrogen Receptor alpha/genetics , Estrogen Receptor beta/genetics , Female , Gonadotropin-Releasing Hormone/antagonists & inhibitors , Humans , Infertility, Female/therapy , Oocyte Donation/methods , Pregnancy , Prospective Studies , RNA, Messenger/metabolism , Receptors, Progesterone/genetics , Reverse Transcriptase Polymerase Chain Reaction , Ultrasonography , Young Adult
10.
Death Stud ; 34(1): 71-81, 2010 Jan.
Article in English | MEDLINE | ID: mdl-24479176

ABSTRACT

For many people, names have symbolic power that extends to their timing of death. This study examined the relationship between the symbolic significance of the first letters in the names of professional athletes (baseball, football, hockey, and basketball) and their longevity. A similar analysis was performed for doctors (radiologists, dermatologists, obstetricians/gynecologists) and lawyers for comparison purposes. There was a progressive decrease in longevity associated with names beginning with A to D when all athletes were combined. In each sport, athletes whose first names began with the letter D lived fewer years than those whose names collectively began with E to Z. Doctors and lawyers whose first names began with D also died earlier than those whose names began with E to Z but differences were not statistically significant. A Cox-regression survival analysis for athletes comparing those with names beginning with A, B, C and D vs. E to Z indicated that only those whose names began with D (median survival = 68.1 years) differed significantly from those with E to Z names (median survival = 69.9 years).


Subject(s)
Lawyers/statistics & numerical data , Longevity , Names , Physicians/statistics & numerical data , Semantics , Sports/statistics & numerical data , Aged , Data Interpretation, Statistical , Female , Humans , Male , Symbolism
11.
Death Stud ; 34(8): 757-63, 2010 Sep.
Article in English | MEDLINE | ID: mdl-24482849

ABSTRACT

The authors examined the association between birth month and longevity for major league baseball players. Players born in the month of November had the greatest longevities whereas those born in June had the shortest life spans. These differences remained after controlling for covariates such as birth year, career length, age at debut, height, and player position. The authors determined that the most likely explanation is that those born during seasons when mortalities are highest are constitutionally weakened and more likely to succumb to life threatening conditions later in life.


Subject(s)
Athletes/statistics & numerical data , Baseball/statistics & numerical data , Longevity/physiology , Seasons , Adult , Body Height/physiology , Humans , Male , United States , Young Adult
12.
Omega (Westport) ; 59(4): 325-37, 2009.
Article in English | MEDLINE | ID: mdl-19927597

ABSTRACT

Using mortality data derived from tombstones in two Midwestern cemeteries, we compared the "widowhood effect" (decreased survival following the death of a spouse) among Jews and Catholics. Jewish men and women were both more likely to die sooner after the death of their spouses compared to Catholic men and women. Life table survival analysis indicated that the median number of years of survival following widowhood for Catholic and Jewish men were 7.7 years and 5.0 years, respectively (p < .01). For Catholic and Jewish women, it was 11.0 and 9.5 years, respectively (p < .01). Interpretations were offered in terms of Bowlby's attachment theory.


Subject(s)
Catholicism , Cemeteries , Judaism , Object Attachment , Spouses/statistics & numerical data , Widowhood/ethnology , Aged , Bereavement , Cause of Death , Cultural Characteristics , Female , Humans , Male , Middle Aged , Midwestern United States
13.
Death Stud ; 33(2): 175-84, 2009 Feb.
Article in English | MEDLINE | ID: mdl-19143110

ABSTRACT

The authors assessed the relationship of mortality salience, as represented by birthdays, on the day of death. Preliminary studies considered the role of possible artifacts such as seasonality of birth and death, and time units for evaluation. On the basis of terror management theory's concept of "mortality salience," the authors hypothesized that famous people, in this case Major League Baseball (MLB) players, would be more likely to die on or after their birthdays than would be expected by chance (the "birthday blues"), and that the greater their fame, as represented by induction into the Baseball Hall of Fame, the greater the concentration of deaths shortly after birthdays. The results supported the hypothesis. Theoretical underpinnings of these results and practical implications were discussed.


Subject(s)
Achievement , Anniversaries and Special Events , Baseball , Death , Analysis of Variance , Humans , Life Change Events , Mortality , Psychological Theory , Seasons , Time Factors , United States
14.
J Ultrasound Med ; 27(11): 1591-6, 2008 Nov.
Article in English | MEDLINE | ID: mdl-18946098

ABSTRACT

OBJECTIVE: The purpose of this study was to evaluate whether the dynamics of endometrial stripe thickness during gonadotropin-releasing hormone (GnRH) antagonist pituitary downregulation in in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) cycles are related to implantation and pregnancy outcomes. METHODS: This retrospective cohort study evaluated 115 conventional IVF/ICSI cycles. All patients underwent ovarian stimulation with gonadotropins and the GnRH antagonist ganirelix acetate. The endometrial stripe was measured transvaginally daily from the day of initial GnRH antagonist administration to the day of the human chorionic gonadotropin (hCG) trigger and then transabdominally on the day of embryo transfer. We created 5 categories (0-4) of endometrial thickness variation, considering significant a daily variation of 1.5 mm. Our aim was to predict whether the endometrial thickness dynamics or morphologic characteristics were related to the duration of ovarian stimulation, duration of ganirelix use, or estradiol levels during ovarian stimulation and whether they would influence implantation and pregnancy rates. RESULTS: No relationship was found between the duration of ovarian stimulation, duration of ganirelix use, and estradiol level (expressed as the area under the curve), and endometrial thickness dynamics or morphologic characteristics. Despite a thinner endometrial thickness in 37% of the cycles on the day of the hCG trigger compared with the beginning of GnRH antagonist stimulation, there was no correlation between endometrial dynamics and pregnancy outcomes. There was, instead, a positive relationship between a trilaminar endometrial morphologic pattern with a positive pregnancy test result, successful implantation, and ongoing pregnancy (P < .05). CONCLUSIONS: Despite a net decrease in thickness in almost 50% of cases, endometrial dynamics did not correlate with pregnancy outcomes. Conversely, a trilaminar endometrial morphologic pattern on the day of embryo transfer was positively related to pregnancy outcomes.


Subject(s)
Endometrium/diagnostic imaging , Fertilization in Vitro/statistics & numerical data , Gonadotropin-Releasing Hormone/analogs & derivatives , Infertility, Female/diagnostic imaging , Infertility, Female/therapy , Pregnancy Outcome/epidemiology , Sperm Injections, Intracytoplasmic/statistics & numerical data , Adult , Female , Fertility Agents/administration & dosage , Gonadotropin-Releasing Hormone/administration & dosage , Gonadotropin-Releasing Hormone/antagonists & inhibitors , Humans , Infertility, Female/epidemiology , Middle Aged , Ovulation Induction/statistics & numerical data , Pregnancy , Retrospective Studies , Statistics as Topic , Ultrasonography/statistics & numerical data , Young Adult
15.
J Assist Reprod Genet ; 25(6): 245-50, 2008 Jun.
Article in English | MEDLINE | ID: mdl-18551363

ABSTRACT

PURPOSE: To assess the ability of fibroblasts isolated from normal peritoneum and adhesion tissues to express various hormone receptors when cultured with exogenous estradiol. METHODS: Primary cultures of fibroblasts from normal human peritoneum and adhesion tissue were treated with zero (control), 10(-10), 10(-8), and 10(-6) M concentrations of 17beta-estradiol. We performed real time reverse transcriptase polymerase chain reaction to determine mRNA levels of estradiol-alpha receptor (ER-alpha) and estradiol-beta receptor (ER-beta), progesterone receptor (P-R), androgen receptor (A-R), and prolactin receptor (PRL-R) in the two types of fibroblast cultures. RESULTS: In the control groups, P-R and A-R were higher in normal than in adhesion fibroblasts. In adhesion cells, ER-alpha were higher at 10(-8) estradiol; ER-beta were higher at 10(-6) M estradiol; P-R remained constant; A-R showed a higher expression at 10(-10) and 10(-8) M estradiol; and PRL-R showed an exponential increase at 10(-10) M estradiol. CONCLUSIONS: The inflammatory-like changes manifested by adhesion fibroblasts enhance the anabolic hormones receptor expression (ER-alpha, ER-beta, PRL, and A-R), when exposed to estradiol.


Subject(s)
Estradiol/pharmacology , Fibroblasts/drug effects , Peritoneum/drug effects , Receptors, Androgen/genetics , Receptors, Estrogen/genetics , Receptors, Progesterone/genetics , Receptors, Prolactin/genetics , Cells, Cultured , Fibroblasts/metabolism , Fibroblasts/pathology , Gene Dosage , Gene Expression Regulation/drug effects , Humans , Peritoneal Diseases/genetics , Peritoneal Diseases/metabolism , Peritoneal Diseases/pathology , Peritoneum/metabolism , Peritoneum/pathology , RNA, Messenger/metabolism , Tissue Adhesions/genetics , Tissue Adhesions/metabolism , Tissue Adhesions/pathology
16.
J Assist Reprod Genet ; 25(5): 177-81, 2008 May.
Article in English | MEDLINE | ID: mdl-18461435

ABSTRACT

PURPOSE: To evaluate whether oocyte quality, implantation and pregnancy outcomes in in vitro fertilization (IVF)/intra-cytoplasmic sperm injection (ICSI) are related to the duration of gonadotropin-releasing hormone (GnRH)-antagonist use or the timing of its initiation. METHODS: Retrospective cohort study of 178 conventional IVF/ICSI cycles. All patients underwent ovarian stimulation with gonadotropins and GnRH-antagonist for pituitary down-regulation. Spearman correlations and logistic regression were used for statistical analysis. RESULTS: There was no correlation between the duration of use or the timing of initiation of GnRH-antagonist with oocyte quality or implantation and pregnancy outcomes. Oocyte quality was influenced by the peak estradiol. Implantation was influenced by the patient's age. Early pregnancy loss, by the endometrial thickness on human chorionic gonadotropin-day. Ongoing pregnancy was independent from the variables evaluated. CONCLUSIONS: GnRH-antagonist duration of use or starting day did not influence oocyte quality, implantation rates, and pregnancy rates. We hypothesize that a follicle stimulating hormone/luteinizing hormone dose increase when antagonist was started, may have had an impact on our findings.


Subject(s)
Down-Regulation/drug effects , Gonadotropin-Releasing Hormone/antagonists & inhibitors , Hormone Antagonists/pharmacology , Oocytes/drug effects , Pregnancy Outcome , Sperm Injections, Intracytoplasmic , Adult , Cohort Studies , Female , Humans , Middle Aged , Oocytes/cytology , Pregnancy , Retrospective Studies
17.
Biodemography Soc Biol ; 54(1): 1-7, 2008.
Article in English | MEDLINE | ID: mdl-19350757

ABSTRACT

In most marriages, husbands are older than wives at the time of marriage. The extent of this age difference is referred to as age heterogamy. Studies of age heterogamous marriages have found men and women married to younger spouses live longer than those married to spouses that are the same age at time of marriage. In this study we examined the role of a religious affiliation as a factor in this age heterogamy effect, by comparing Jewish and Christian husbands and wives. While we confirmed the age heterogamy effect on longevity, we did not find any evidence that it was affected by religion.


Subject(s)
Cemeteries/statistics & numerical data , Christianity , Jews/statistics & numerical data , Longevity , Marriage/statistics & numerical data , Age Factors , Aged , Analysis of Variance , Female , Humans , Male , Michigan , Socioeconomic Factors , United States
18.
Fertil Steril ; 89(4): 998-1001, 2008 Apr.
Article in English | MEDLINE | ID: mdl-17678904

ABSTRACT

In this retrospective cohort study of 102 ovarian stimulation cycles for IVF/intracytoplasmic sperm injection using GnRH antagonist and gonadotropins, we sought to assess the effect of high E(2) levels on endometrial stripe thickness and its association with pregnancy outcomes and serum E(2) levels. We found no significant correlation between serum E(2) levels (both peak and area under the curve E(2) concentration) and the endometrial thickness. However, there was a statistically significant inverse relationship with early pregnancy loss (31%) if the endometrial thickness was <9.8 mm (sensitivity 71%; specificity 76%).


Subject(s)
Abortion, Spontaneous/diagnosis , Endometrium/drug effects , Estradiol/blood , Fertility Agents, Female/therapeutic use , Gonadotropin-Releasing Hormone/antagonists & inhibitors , Hormone Antagonists/therapeutic use , Infertility/therapy , Ovulation Induction/adverse effects , Abortion, Spontaneous/blood , Abortion, Spontaneous/pathology , Adult , Cohort Studies , Down-Regulation , Embryo Transfer , Endometrium/pathology , Female , Fertility Agents, Female/pharmacology , Fertilization in Vitro , Gonadotropins/therapeutic use , Hormone Antagonists/pharmacology , Humans , Infertility/blood , Infertility/pathology , Ovulation Induction/methods , Pregnancy , Pregnancy Outcome , Pregnancy Rate , Retrospective Studies , Sensitivity and Specificity , Sperm Injections, Intracytoplasmic , Treatment Outcome
19.
Death Stud ; 31(10): 933-40, 2007 Nov.
Article in English | MEDLINE | ID: mdl-17924518

ABSTRACT

We tested McCann's precocity-longevity hypothesis, which proposes that early career achievement is related to premature death, for Major League baseball players (N = 3,760). Age at debut was the definition for precocity. We controlled for possible artifacts of life expectancy selection, the "healthy worker" effect, player position, and body-mass index. Statistically significant Pearson correlations occurred between precocity and longevity, and remained significant when adjusted for artifacts. In a hierarchical multiple regression, every year a baseball player debuted before the average age of 23.6 years was associated with life span being shortened by 0.24 years. The results support the hypothesis that earlier achievement is associated with earlier death.


Subject(s)
Achievement , Baseball , Life Expectancy , Longevity , Models, Theoretical , Age Factors , Body Mass Index , Death , Humans , Life , Male , United States
20.
Percept Mot Skills ; 104(2): 405-6, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17566429

ABSTRACT

Heights and weights of right- and left-handed major league baseball pitchers (N=5780) were analyzed, adjusted for birth year. Right-handed pitchers were about 1.6 cm taller and 1.9 kg heavier than left-handed pitchers. The results corroborated other studies and suggest body size is related to handedness, although the average difference in height between right- and left-handed pitchers was very small.


Subject(s)
Baseball/psychology , Body Height , Body Weight , Functional Laterality , Adult , Age Factors , Humans , Male , Psychomotor Performance , Statistics as Topic , United States
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