METHODS: Subjects were 200 consecutive patients admitted to Kuala Tereng-ganu General Hospital, Malaysia with severe hypertension in pregnancy between August 1989 and June 1990. Admission criteria were an ongoing viable pregnancy more than 28 weeks and diastolic blood pressure (DBP) more than 120 mmHg. The patients were randomly divided into 2 groups. In group I, sublingual nifedipine 5 mg was administered and repeated after 15 minutes if DBP > 120 mmHg; and in group II hydrallazine 5 mg was intravenously injected and repeated after 15 minutes if DBP > 120 mmHg. Both groups were put on hydrallazine infusion if DBP > 120 mmHg after 30 minutes. The Chi-square test was used for analysis with significance at p < 0.05.
RESULTS: There was no statistical difference in the efficacy of therapy for decreasing blood pressure between the 2 groups. The groups were comparable by age, parity, gestational age at presentation, birth weight of infants, incidence of postpartum haemorrhage and fetal distress. Caesarian section rates were similar. In the observational studies on nurses administering the drugs, no significant difficulties were observed.
CONCLUSION: Sublingual nifedipine was comparable to IV hydrallazine in the treatment of acute hypertension of pregnancy. Nurses were able to administer lingual nifedipine without difficulty.
METHODS: Data from the population-based Singapore Cancer Registry for 1968-1992 were used to determine time trends, inter-ethnic differences and the contributions of age, period and cohort effects to the incidence of the disease.
RESULTS: Our results revealed an average annual increase of 3.6% over the 25-year period for all women, form 20.2 per 100,000 women in the period 1968-1972 to 38.8 per 100,000 in 1988-1992. There was a statistically significant difference between the three major ethnic groups, the rate of increase being highest in Malays (4.4%) and lowest in Indians (1.4%). The overall increase was attributable to a strong cohort effect that remained significant when adjusted for time period for Chinese women and for all ethnic groups combined. The risk was observed to increase in successive birth cohorts from the 1890s to 1960s.
CONCLUSIONS: Our results suggest that breast cancer incidence rates are likely to continue to increase more sharply in the future as women born after the mid-20th century reach the high-risk age groups. They also suggest the pattern by which important aetiological factors for the disease in our population have exerted their effects, and provide support for the role of demographic and lifestyle changes as possible risk factors.