Blaine Ditto
Biographic Data
| ID | 236846 |
|---|---|
| NAME | Blaine Ditto |
| GIVEN NAMES | Blaine |
| FAMILY NAME | Ditto |
| SIGNATURE | DITTO B |
| AFFILIATIONS | McGill University |
| VERIFIED | No |
| TOTAL WORKS | 14 |
| TOTAL CITATIONS | 4 |
| WORKS AS AUTHOR | 14 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1982 |
| LATEST PUBLICATION YEAR | 2021 |
| H-INDEX | 1 |
Parity and Psychosocial Risk Factors Increase the Risk of Depression During Pregnancy Among Recent Immigrant Women in Canada
Hyperventilation as a Predictor of Blood Donation–Related Vasovagal Symptoms
OBJECTIVE: Most of the research on vasovagal reactions has focused on the contributions of cardiovascular activity to the development of symptoms. However, other research suggests that additional mechanisms like hyperventilation may contribute to the process. The goal of the present investigation was to examine the influences of cardiovascular and respiratory variables on vasovagal symptoms. METHODS: This study was part of a randomized controlled…
Hypertensive Disorders of Pregnancy and Symptoms of Depression and Anxiety as Related to Gestational Age at Birth
OBJECTIVE: The aim of the study was to investigate whether symptoms of depression or state anxiety changed the strength or nature of the association between hypertensive disorders of pregnancy (HDP) and gestational age at birth. METHODS: We conducted a secondary analysis of data from the All Our Families Cohort, a prospective pregnancy cohort study based in Calgary, Alberta, Canada. Self-reported depressive symptoms and state anxiety were assesse…
A Composite Measure of Gender and Its Association With Risk Factors in Patients With Premature Acute Coronary Syndrome
OBJECTIVE: To create a gender index by using principal component analyses (PCA) and logistic regression, and to determine the association between gender, sex, and cardiovascular risk factors among patients with premature acute coronary syndrome (ACS). METHODS: GENESIS-PRAXY is a cohort study including ACS patients aged 55 years or below, and with ACS recruited between 2009 and 2013 from 26 centres across Canada, the United States, and Switzerland…
Early Socioeconomic Status is Associated With Adult Nighttime Blood Pressure Dipping
OBJECTIVE: To examine the prognostic significance of early socioeconomic status (SES) on 24-hour blood pressure (BP) during early adulthood. Low SES has been related to poor health outcomes, in particular, cardiovascular morbidity and mortality. Recent cross-sectional research has also linked low levels of SES with several cardiovascular risk factors including poor nighttime BP dipping. METHODS: A total of 174 undergraduate university students wh…
Alexithymia, Cardiovascular Reactivity, and Symptom Reporting During Blood Donation
OBJECTIVE: With blood donation serving as a naturalistic stressor and a controlled medical event, the aim of this study was to examine emotional and cardiovascular reactivity, self-report of vasovagal symptoms, and perceived pain as a function of scores on the Toronto Alexithymia Scale (TAS-20). METHOD: Healthy young adult blood donors (N = 610) recruited at mobile blood collection clinics completed the TAS-20, pre- and postdonation measures of a…
Social Behavior and Blood Pressure
A One-Hour Active Coping Stressor Reduces Small Bowel Transit Time in Healthy Young Adults
OBJECTIVE: To examine the effect of a prolonged active coping stressor on the transit of a substance from the mouth through small intestine in normal human volunteers. METHOD: Twelve healthy undergraduate males were administered 10 g of the nonabsorbable carbohydrate lactulose in two experimental sessions. In normal individuals, lactulose produces hydrogen gas upon exposure to bacteria residing in the colon. Repeated measurements of breath hydrog…
Family history of hypertension and pain during blood donation
Parental history of hypertension was associated with significantly lower venipuncture pain ratings in women with little or no blood donation experience. Healthy men (N = 288) and women (N = 434) presenting at Red Cross blood donor clinics provided pain ratings in response to an initial blood sample and venipuncture for blood donation. Analyses were restricted to 460 individuals with and without a confirmed parental history of hypertension (N = 18…
Carotid baroreflex sensitivity at rest and during psychological stress in offspring of hypertensives and non-twin sibling pairs
The baroreceptor reflexes of 38 young adult males were mechanically stimulated by negative external cervical pressure during a mental arithmetic task and pre-stress and post-stress relaxation periods. The subjects comprised 19 pairs of non-twin siblings. Baroreflex sensitivity was significantly less pronounced during arithmetic. Using non-invasive techniques, this finding replicates several others indicating a damping of the baroreceptor reflux d…
Similarities within young and middle-aged spouse pairs in behavioral and cardiovascular response to two experimental stressors
The similarities of 30 young (X = 26 years) and 30 middle-aged (X = 52 years) spouse pairs in behavioral and cardiovascular response to two experimental stressors were compared to assess the importance of shared home experiences in determining cardiovascular responsivity to stress. Familial environmental influences on reactivity should produce increasing similarity among family members with number of years lived together. Although pair members ex…
Attitudes and Attributions Related to Psychological Symptomatology in Indian Immigrant Women
This study explored the patterns of attitudes and attributions associated with relatively high and low distress among a sample of (N = 104) immigrant women from India living in Montreal. Results showed the high distress group to be less satisfied with their roles in the home and in the job market, to be more in favor of modem sex roles, to want less to pass on traditional sex roles to their children, to attribute success and failure more to their…
Cardiovascular responses to occupational stress and caffeine in telemarketing employees
Cardiovascular responses to the combination of caffeine and a challenging occupational activity were examined using a within-subject, double-blind design. Seventeen female and 11 male telemarketing employees received drinks that did and did not contain 250 mg of caffeine on two consecutive days, with order of presentation counterbalanced across subjects. Repeated measurements of systolic and diastolic blood pressure, heart rate, and digital blood…
Daily Activities of College Students and the Construct Validity of the Jenkins Activity Survey
To examine the everyday behavioral correlates of Jenkins Activity Survey (JAS) scores, 70 college students recorded the nature of their activities for 1 week. Several behavioral differences between individuals classified as Type A and Type B on the basis of JAS scores were observed. These differences were consistent with most definitions of the Type A behavior pattern. Type As spent more time in class, studying, and participating in religious ser…
Attitudes and Attributions Related to Psychological Symptomatology in Indian Immigrant Women
This study explored the patterns of attitudes and attributions associated with relatively high and low distress among a sample of (N = 104) immigrant women from India living in Montreal. Results showed the high distress group to be less satisfied with their roles in the home and in the job market, to be more in favor of modem sex roles, to want less to pass on traditional sex roles to their children, to attribute success and failure more to their…
Daily Activities of College Students and the Construct Validity of the Jenkins Activity Survey
To examine the everyday behavioral correlates of Jenkins Activity Survey (JAS) scores, 70 college students recorded the nature of their activities for 1 week. Several behavioral differences between individuals classified as Type A and Type B on the basis of JAS scores were observed. These differences were consistent with most definitions of the Type A behavior pattern. Type As spent more time in class, studying, and participating in religious ser…
Cardiovascular responses to occupational stress and caffeine in telemarketing employees
Cardiovascular responses to the combination of caffeine and a challenging occupational activity were examined using a within-subject, double-blind design. Seventeen female and 11 male telemarketing employees received drinks that did and did not contain 250 mg of caffeine on two consecutive days, with order of presentation counterbalanced across subjects. Repeated measurements of systolic and diastolic blood pressure, heart rate, and digital blood…
Carotid baroreflex sensitivity at rest and during psychological stress in offspring of hypertensives and non-twin sibling pairs
The baroreceptor reflexes of 38 young adult males were mechanically stimulated by negative external cervical pressure during a mental arithmetic task and pre-stress and post-stress relaxation periods. The subjects comprised 19 pairs of non-twin siblings. Baroreflex sensitivity was significantly less pronounced during arithmetic. Using non-invasive techniques, this finding replicates several others indicating a damping of the baroreceptor reflux d…
Similarities within young and middle-aged spouse pairs in behavioral and cardiovascular response to two experimental stressors
The similarities of 30 young (X = 26 years) and 30 middle-aged (X = 52 years) spouse pairs in behavioral and cardiovascular response to two experimental stressors were compared to assess the importance of shared home experiences in determining cardiovascular responsivity to stress. Familial environmental influences on reactivity should produce increasing similarity among family members with number of years lived together. Although pair members ex…
Attitudes and Attributions Related to Psychological Symptomatology in Indian Immigrant Women
This study explored the patterns of attitudes and attributions associated with relatively high and low distress among a sample of (N = 104) immigrant women from India living in Montreal. Results showed the high distress group to be less satisfied with their roles in the home and in the job market, to be more in favor of modem sex roles, to want less to pass on traditional sex roles to their children, to attribute success and failure more to their…
Family history of hypertension and pain during blood donation
Parental history of hypertension was associated with significantly lower venipuncture pain ratings in women with little or no blood donation experience. Healthy men (N = 288) and women (N = 434) presenting at Red Cross blood donor clinics provided pain ratings in response to an initial blood sample and venipuncture for blood donation. Analyses were restricted to 460 individuals with and without a confirmed parental history of hypertension (N = 18…
A One-Hour Active Coping Stressor Reduces Small Bowel Transit Time in Healthy Young Adults
OBJECTIVE: To examine the effect of a prolonged active coping stressor on the transit of a substance from the mouth through small intestine in normal human volunteers. METHOD: Twelve healthy undergraduate males were administered 10 g of the nonabsorbable carbohydrate lactulose in two experimental sessions. In normal individuals, lactulose produces hydrogen gas upon exposure to bacteria residing in the colon. Repeated measurements of breath hydrog…
Social Behavior and Blood Pressure
Alexithymia, Cardiovascular Reactivity, and Symptom Reporting During Blood Donation
OBJECTIVE: With blood donation serving as a naturalistic stressor and a controlled medical event, the aim of this study was to examine emotional and cardiovascular reactivity, self-report of vasovagal symptoms, and perceived pain as a function of scores on the Toronto Alexithymia Scale (TAS-20). METHOD: Healthy young adult blood donors (N = 610) recruited at mobile blood collection clinics completed the TAS-20, pre- and postdonation measures of a…
Early Socioeconomic Status is Associated With Adult Nighttime Blood Pressure Dipping
OBJECTIVE: To examine the prognostic significance of early socioeconomic status (SES) on 24-hour blood pressure (BP) during early adulthood. Low SES has been related to poor health outcomes, in particular, cardiovascular morbidity and mortality. Recent cross-sectional research has also linked low levels of SES with several cardiovascular risk factors including poor nighttime BP dipping. METHODS: A total of 174 undergraduate university students wh…
A Composite Measure of Gender and Its Association With Risk Factors in Patients With Premature Acute Coronary Syndrome
OBJECTIVE: To create a gender index by using principal component analyses (PCA) and logistic regression, and to determine the association between gender, sex, and cardiovascular risk factors among patients with premature acute coronary syndrome (ACS). METHODS: GENESIS-PRAXY is a cohort study including ACS patients aged 55 years or below, and with ACS recruited between 2009 and 2013 from 26 centres across Canada, the United States, and Switzerland…
Hypertensive Disorders of Pregnancy and Symptoms of Depression and Anxiety as Related to Gestational Age at Birth
OBJECTIVE: The aim of the study was to investigate whether symptoms of depression or state anxiety changed the strength or nature of the association between hypertensive disorders of pregnancy (HDP) and gestational age at birth. METHODS: We conducted a secondary analysis of data from the All Our Families Cohort, a prospective pregnancy cohort study based in Calgary, Alberta, Canada. Self-reported depressive symptoms and state anxiety were assesse…
Hyperventilation as a Predictor of Blood Donation–Related Vasovagal Symptoms
OBJECTIVE: Most of the research on vasovagal reactions has focused on the contributions of cardiovascular activity to the development of symptoms. However, other research suggests that additional mechanisms like hyperventilation may contribute to the process. The goal of the present investigation was to examine the influences of cardiovascular and respiratory variables on vasovagal symptoms. METHODS: This study was part of a randomized controlled…
Parity and Psychosocial Risk Factors Increase the Risk of Depression During Pregnancy Among Recent Immigrant Women in Canada
Medicine (13 works) · Internal Medicine (11 works) · Internal Medicine (11 works) · Blood pressure (7 works) · Psychiatry (7 works) · Psychology (7 works) · Anxiety (5 works) · Clinical Psychology (5 works) · Heart rate (5 works) · Anesthesia (3 works)