Social conditions and health of pregnant Jamaican women

This study analysed data from a national sample of 10,428 mothers who had births occuring in Jamaica in September and October 1986 in order to identify which socio-economic and environmental features best predicted health problems of the mother and the baby. The four categories of problems arising during pregnancy (bleeding, vaginal infection/discharge, 'other problems', antenatal hospital admission) showed the reverse pattern to the one expected: mothers who were more highly educated and lived in better sanitary conditions tended to be those reporting more problems. Features of the mothers which could not be due to a perception bias (short stature and low haemoglobin levels) were more clearly associated with socio-economic deprivation. In addition, the clear-cut adverse outcomes of pregnancy - pre-term delivery and growth retardation - showed strong consistent associations with the conjugal union status of the mother, her usual employment status, the household expenditure on food and a newly derived social status classification based on the occupation warrants testing in other situations in Jamaica.

Environmental factors associated with pre-term delivery in Jamaica

Social and environmental factors were related to preterm delivery in a national population of 10,330 singleton births occuring in the Jamaican National Perinatal Morbidity and Mortality Survey of 1986. Among women certain of their dates, the preterm delivery rate was 14.2 por ciento . Initial two-way tabulations indicated that the significant associations with preterm delivery were the marital status of the mother, her educational level, the job of the major wage earner, whether she was herself the major wage earner, her usual employment status, the food expenditure per person in the household and the parish in which she resided. In addition, there were associations with tobacco smoking (positive) and alcohol consumption (negative). Mothers who were in work at the time of quickening had a reduced risk of of preterm delivery. There was no association with coital rate at quickening. Mothers who were young or relatively old (35+) also had an increased risk of preterm delivery. Logistic regressiion was used to determine the statistically significant independent associations. These were found to be: parish of residence, maternal age, marital status of the mother, the job of major wage earner in the household, maternal cigarette smoking and the amount spent on food in the household. There were no independent associations with maternal education level or alcohol ingestion.

Perinatal mortality in Jamaica 1986-1987

A large population-based study of all stillbirths and neonatal deaths occuring on the island of Jamaica during a 12 month period is described. During this time, 2069 perinatal deaths were identified from an estimated population of 54,400 total births giving a perinatal death rate of 38.0 per 1000 total births. The death rate was 5 times higher among twins than singletons. An attempt was made to obtain detailed postmortem examination of as many deaths as possible. In the event, 51 por ciento of perinatal deaths received such a postmortem examination, for the most part by 3 specially trained pathologists working in the capital. Postmortem rate was affected by sex, multiplicity of the infant, month of death and area of delivery. Deaths were classified using Wigglesworth scheme. The distribution categories was similar in the months when the postmortem rate was 70 por ciento to the rest of the time period when the post-mortem rate was only 40 por ciento . The Wigglesworth classification of deaths identified those associated with intrapartum asphyxia as the most important group, accounting for over 40 por ciento of deaths. This simple classification is important as it focusses attention on details of labour and delivery that may require change and is useful in planning future delivery of obstetric and neonatal care.

Incidence of anencephaly in Jamaica

Information was collected on 2,197 stillbirths and neonatal deaths on the island of Jamaica during a 12 month period September 1986 to August 1987 as part of the population based nationwide Jamaican Perinatal Morbidity and Mortality Survey. There were 14 cases of anencephalus giving an incidence of 0.26 per 1000 total births. There was no detectable association with social class, maternal age or parity. The rate in Jamaica is considerably lower than found in any other population study.

A cluster of central nervous system defects in Jamaica

Information was collected on all stillbirths and neonatal deaths on the island of Jamaica during the 12 month period September 1986 to August 1987. There were 33 such deaths with anencephaly, spina bifida and hydrocephalus out of an estimated population of 54,400 total births. There was a statistically significant cluster in respect to time of conception in one small rural area of the island. There were no obvious differences between parents involved in the cluster and the rest of the population, but particular Jamaican fruit and vegetables have been shown to be teratogenic in animals. It is postulated that the cluster may have been associated with an unripe crop.

Area variation in perinatal mortality in Jamaica: association with type of hospital services available

Information on the area of maternal residence of 1856 singleton perinatal deaths occurring during a 12 month period (September 1986 - August 1987) were compared with those of 9933 singleton births born during a two month period (September-October 1986) and surviving the first week of life (The Jamaican Perinatal Morbidity and Mortality Survey). The overall mortality ratio of deaths to estimated survivors was 35.7 per 1000. When the area of residence was categorised according to the type of facilities available, there was a clear trend - births to mothers resident in areas with specialist hospital facilities available, had a mortality ratio of 32.0 per 1000, substantially less than those areas with some obstetric and paediatric facilities (rate 39.2 per 1000) or those with only a cottage hospital and no obstetricians (35.8 per 1000). Categorisation of the deaths using the Wigglesworth classification showed significant variation with intrapartum anoxia. This could not be explained by differences in birthweight, or demographic features of the population. It is concluded that access to a specialist hospital results in a significant reduction in mortality associated with intrapartum asphyxia, but not with other types of perinatal death.

Maternal mortality in Jamaica: health care provision and causes of death

During the Jamaian Perinatal Mortality and Morbidity Survey, details of 62 maternal deaths occurring in the 12 month period September 1987 to August 1988 were compared with a control population of 95 por ciento of all births on the island in September and October 1987. The incidence (11.5 per 10,000 livebirths) had not fallen since a study 5 years previously. The mothers who died showed the expected trends with advanced maternal age and high parity. The major cause of maternal mortality was hypertension, (3.5 per 10,000 livebirths) followed by haemorrhage and infection. There was little evidence that these mothers had delayed their first attendance for antenatal care but they were more likely to have reduced access to basic facilities such as health centres and public transport. The risk of maternal death varied with grade of hospital facilities available, particularly for hypertension-related deaths, being lowest in areas with access to a specialist hospital and highest in areas where there were no obstetricians available.

Maternal mortality in Jamaica: socioeconomic factors

Socioeconomic factors relating to all maternal deaths identified during the 12 months of the Jamaican Perinatal Morbidity and Mortality Survey were compared with a control population of over 10,000 women. The maternal mortality rate was 11.5 per 10,000 livebirths. Initial analyses showed (a) a negative trend in risk of maternal death with increasing maternal education level, (b) that mothers who lived in households with direct pumped water and/or flush toilets enjoyed a reduced risk, (c) mothers who were themselves the major wage earner and (d) those living in households where the major wage earner was a farmer were at increased risk of maternal death. A previous analysis showed that the mothers age, her parity and variables indicating access to medical care were important. Logistic regression showed that only maternal age and toilet facilities were independently associated with maternal mortality.