Biomedical subjects

J Dalkvist

Publications and source records attributed to J Dalkvist.

3 recordsLinked to original sources

PubMed1995

Aetiologic factors associated with hoarseness in ten-year-old children.

The parents of 55 10-year-old children answered questionnaires concerning 51 elements of potential relevance to voice function such as vocal habits, speech and language development, medical history, social history, physical environment and family relations. In addition, personality profiles of each child were assessed by its teacher and parents. The results were compared to an expert listening panel's evaluation of hoarseness and vocal-fold status as determined by a visual examination by a phoniatrician. Eight boys were identified as being chronically hoarse. Gender, personality and hours spent per day in large groups were highly significant factors associated with hoarseness. A discriminant analysis based on the significant background variables correctly grouped 86.3% of the children.

Child↗

PubMed1984

Headache and mood: a time-series analysis of self-ratings.

Self-ratings with respect to headache and five mood dimensions were obtained twice daily from five patients suffering from migraine and six patients suffering from muscle-contraction headache during a mean period of 47.9 days (range: 38-61). The data were analysed by multiple regression, with the rated headache as dependent variable. Different time intervals between measurement of the independent variables and measurement of the dependent variable were used. A significant time-dependent relation was found between the migraine ratings and the alertness ratings. Significant time-dependent relations were also found between rated muscle-contraction headache and rated anger and alertness, respectively, but the trends were not very pronounced. In the case of no time lag, rated muscle-contraction headache tended to be negatively related to rated alertness, happiness and concentration. Significant periodic trends were found for both the migraine and the muscle-contraction headache. The major findings are discussed in terms of stress and biological rhythms.

Adolescent↗

PubMedDate not supplied

Herpes simplex and mood: a prospective study.

The effect of mood, the common cold, amount of sleep, and sunshine on recurring herpes simplex virus (HSV) infection was investigated using daily self-reports over a 3-month period from 23 female and 15 male patients with genital herpes and 26 female and two male patients with oral herpes. Results showed recurring genital HSV infection to be preceded by reduced and decreasing overall emotional well being over a period of 10 days, with a temporary improvement in the middle of the period. This pattern was significantly represented by rated nervousness and rated alertness. Females showed more marked trends for reported mood than did the males, which could not be attributed to the menstrual cycle. Conversely, males showed a more marked, strongly significant fourth-order trend for reported amount of sleep, with nadirs on the 8th and the 3rd day before the recurrence. Neither exposure to sunshine nor the common cold showed any relation to recurrence of genital HSV infection. The common cold appeared as the major precipitating factor in oral herpes. Except for a significant fourth-order trend for rated alertness, no relationship between mood and subsequent onset was found. This negative finding was interpreted as a masking effect of the common cold. Two alternative physiological theories, the ganglion trigger theory and the skin trigger theory, were discussed in relation to present findings. It was suggested that various possible mediators between mood states and recurring herpes should be investigated using the present approach, with structured diaries as complement to the rating scales.

Adult↗