No abstract

English‐Canadian high school students (129 boys, 117 girls) participated in a study of the relationship between suicidal ideation and selected personal variables, stress, and social support. Associations were found between suicidal ideation and the variables of gender, self‐esteem, locus of control, depression, drug use, stress, perception of health, family status, academic performance, social support, and anomie. Multiple regression analysis identified depression and alcohol use as best individual predictors among these variables. Semi‐partial correlation analyses showed that removal of the effect of depression resulted in a loss of initially significant relationships between suicidal ideation and the other variables except for alcohol use, drug use, and health satisfaction.

Temporal interictal rhythmic delta activity or TIRDA was found in 45 of the 127 recordings of patients with complex partial epilepsy (CPE) referred for both awake and sleep E E C TIRDA was more abundant during drowsiness and light sleep; it occurred more characteristically as trains of 50-100 ^.v sinusoidal or saw-toothed l-4Hz activity, recorded predominantly from anterior temporal regions. When occurring bilaterally and independently, TIRDA varied from side to side. TIRDA is often found in association with anterior temporal spikes or sharp waves (TS) particularly during sleep, as observed in 43 out of 45 EEGs. TIRDA can nevertheless occur as an isolated abnormality, as noted in two sleep and 12 awake study recordings. Because of its high specificity and positive predictive value over a large range of prevalence, TIRDA should be singled out as an accurate interictal indicator of CPE. In patients with isolated TIRDA, the cost of prolonged EEG recording during sleep for the purpose of activating TS has to be weighed against the yield of eventually confirming the obvious. RESUME: TIRDA ou activite rythmique temporale inter-critique dans le diagnostic de I'epilepsie partielle complexe: sensibilite, specificite et valeur predictive Chez 35 % des malades adresses pour investigation d'une epilepsie partielle complexe, l'electroencephalogramme a revele en temporal une activite delta rythmique inter-critique (TIRDA). Plus abondant durant somnolence et sommeil leger, le TIRDA se presente plus classiquement sous forme de train d'ondes de 1 a 4Hz, d'une amplitude allant de 50 a 100 |J.v. Lorsque bilateral, le TIRDA survient de facon asynchrone et avec une morphologie distincte de chaque cote. Souvent associe a des pointes temporales anterieures (TS), le TIRDA peut se retrouver n6anmoins de facon isolee. A cause de sa tres grande specificite et de sa valeur predictive elevee pour un large spectre de prevalence, le TIRDA merite d'etre retenu comme un indicateur intercritique pathognomonique de I'epilepsie partielle complexe. Les inconvenients d'un enregistrement prolonge pendant le sommeil, a la recherche de la pointe temporale classique, meritent d'etre souspeses lorsque le TIRDA represente la seule anomalie recueillie lors d'un electroencephalogramme initial.

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The anatomic site distribution of large bowel cancer was studied in 2079 patients between 1967 and 1980. To measure the trend in the localization of the carcinomas, the slope of the regression line of the proportions at each site over the years was computed. The large bowel was divided into five segments: cecum, ascending colon and hepatic flexure, transverse and descending colon, sigmoid and rectosigmoid junction, and rectum. A significant decrease in the proportions of cancer in the sigmoid for both sexes (slope [b] = −0.89; P < 0.001) and an increase of cecal cancer (b = 0.54; P < 0.004) was observed. Sex‐specific results indicated the diminishing proportion of sigmoid cancer in men (b = −1.04; P < 0.004) with an increase in transverse and descending colon cancer proportions (b = 0.52; P = 0.012). In women, a negative slope of ‐‐0.74 was not significant for sigmoid cancer, but cancer of the cecum showed an increase in proportions (b = 0.80; P = 0.01). The age distribution indicated a significant decrease in proportion of men older than 80 years and of women in the age group of 40 to 49 years and an increase in women older than 80 years. However, age adjustment did not change any of the previous conclusions. The observed sex differences in the changing distribution within the large bowel over a 14‐year period cannot be explained by the improvement of diagnostic tools in the last years. In view of these findings, it is important to evaluate the possible sex‐related bias in the application of screening and preventive measures as well as the changes in the ecologic features of the large intestine.