PubMed · 686344
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T H Burns. Apomorphine.. https://doi.org/10.1111/j.1365-2044.1978.tb08450.x
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This report describes maternal and perinatal risk factors for Wilms' tumor analyzed in a case-control study nested in a nationwide cohort in Sweden. The Swedish National Cancer Registry ascertained 110 cases from among successive birth cohorts from 1973 through 1984, identified by the Swedish Medical Birth Registry, the latter based on medical records. From the Birth Registry, we matched 5 controls without cancer to each case by sex and date of birth. Wilms'-tumor children were more likely to have mothers who had been exposed to penthrane (methoxyflurane) anesthesia during delivery than mothers of controls (odds ratio (OR) = 2.4; 95% confidence interval (CI) 1.1 to 5.1); this excess risk was higher in females than males and increased with age at diagnosis. Wilms'-tumor cases were also more likely to have had physiologic jaundice (OR = 2.3; 95% CI 1.1 to 5.0). Higher parity of the mother decreased the risk of Wilms' tumor among females (OR = 0.7; 95% CI 0.5 to 1.0). We were unable to confirm the reported increased risks of Wilms' tumor for those with high birth weights or with a maternal history of hypertension or fluid retention during pregnancy, nor did we find any association with mother's age at delivery, previous stillbirth, previous live birth, gestational length or height of the child.
Perception of the birth experience was examined in a sample of 106 women who had unplanned cesarean deliveries, 113 who had planned cesarean deliveries, and 254 who had vaginal deliveries. Vaginally delivered women had more positive perceptions than their unplanned cesarean counterparts (p < .001). There were no differences in perceptions between the unplanned and planned cesarean groups, or between the planned cesarean and vaginal groups. General anesthesia for cesarean delivery was associated with more negative perceptions than regional anesthesia, and regional anesthesia for vaginal delivery was associated with more negative perceptions than no or local anesthesia. Pain intensity and physical distress were negatively correlated with perceptions.