Analysis of mortality rate and causes of death among children under 5 years old in Beijing from 2003 to 2012 / 中华预防医学杂志

<p><b>OBJECTIVE</b>To understand the age-specific and cause-specific mortality rate among children under 5 years old in Beijing from 2003 to 2012.</p><p><b>METHODS</b>Death surveillance data of children under the age of 5 were obtained from Beijing children mortality surveillance network from 2003 to 2012. Neonatal mortality rate (NMR), infant mortality rate (IMR), under 5-year old children mortality rate (U5MR) and the leading cause of death for under 5-year old children in urban, suburbs, and outer suburbs in Beijing were analyzed.</p><p><b>RESULTS</b>The NMR, IMR and U5MR in Beijing were 2.08 (253/121 747), 3.11 (379/121 747) and 3.57 (435/121 747) per 1000 live births in 2012, respectively, which declined 54.88%, 50.24% and 54.75% compared with the level in 2003 respectively. The children mortality rates showed a decreasing trend in urban, suburb, and outer suburbs during 2003 and 2012 (NMR was decreased from 0.53%, 0.42%, and 0.48% in 2003 to 0.20%, 0.19%, and 0.23% in 2012; IMR was decreased from 0.73%, 0.58%, and 0.63% in 2003 to 0.30%, 0.29%, and 0.35% in 2012; U5MR was decreased from 0.90%, 0.72%, and 0.82% to 0.33%, 0.34%, and 0.39% in 2012, P < 0.01). There was a steady decline in the U5MR due to congenital heart disease, birth asphyxia, premature birth or low birth weight and traffic accident in Beijing from 2003 to 2012. The mortality rate of congenital heart disease declined from 140.63 to 41.89 per 100 000 live births, birth asphyxia declined from 109.38 to 59.96 per 100 000 live births, premature birth or low birth weight declined from 85.94 to 52.57 per 100 000 live births, traffic accident declined from 26.04 to 6.57 per 100 000 live births (P < 0.01). The mortality rate of congenital heart disease declined remarkably from 216.56 to 52.47, from 119.75 to 23.50, and from 134.58 to 63.11 per 100 000 live births in urban, suburb, and outer suburbs(P < 0.01). Six of the top 8 leading causes of death among children under 5 years old declined remarkably in rural areas. They were congenital heart disease, birth asphyxia, premature birth or low birth weight, traffic accident, drowning, and septicemia, and the mortality rate of them declined from 134.58 to 63.11, from 127.85 to 65.54, from 100.94 to 60.69, from 33.65 to 12.14, from 33.65 to 0.00, and from 26.92 to 4.85 per 100 000 live births, respectively (P < 0.05). There was no drowning death case in rural areas in recent 4 years. The top 5 leading causes of death among children under 5 years old in Beijing in 2012 were birth asphyxia, premature birth or low birth weight, congenital heart disease, pneumonia, and accidental suffocation. The mortality rate of these top 5 leading causes were 59.96, 52.57, 41.89, 24.64, and 15.61 per 100 000 live births in 2012.</p><p><b>CONCLUSION</b>From 2003 to 2012, the NMR, IMR, U5MR and mortality rate of congenital heart disease declined remarkably in urban, suburb, and outer suburb areas in Beijing. There was a decrease trend for the six of the top 8 leading causes of death among children under 5 years old. The mortality rate of drowning dropped markedly in outer suburbs.</p>

Epidemiological study on the trend of accidental deaths among children under five in Beijing, during 2003-2012 / 中华流行病学杂志

<p><b>OBJECTIVE</b>To study the trend of accidental death among children under 5 years of age in Beijing.</p><p><b>METHODS</b>Cases of death in children under 5 years old in Beijing, during 2003-2012 were collected, to analyze the strength and trends of accidental death, main causes of accident and its epidemiological features.</p><p><b>RESULTS</b>The overall accidental death was 8.47% of all death among children under 5 years old in Beijing during 2003-2012. During these 10 years, data showed a downward trend on the mortality rates on injuries (P < 0.05), especially on drowning, in 1-4 year old and rural children under five years of age. In 2012, the accidental death rate of children under five was 6.37/105. The 5 main causes of accidental deaths were suffocation, traffic accident, falling, poisoning and drowning, in order of size. The main causes of death were suffocation in the 0-1 year group, suffocation and traffic accident in the 1-2 year group and traffic accident in the 3-4 year group. The proportion of deaths due to traffic accident increased gradually with age. Area distribution showed that accidental deaths mainly happened in rural area (52.19%), with two main types as traffic accident and suffocation.</p><p><b>CONCLUSION</b>The reduction of accidental death rate among children under 5 years old in Beijing mainly was caused by the decline of accident mortality in 1-4 year old and children in the rural areas. Our data suggested that the focus in reducing the accidental death rate among children under 5 years old in Beijing should target on the prevention of infant suffocation and traffic accidents among the 1-4 year old, with rural areas in particular.</p>

Epidemiological study on the trend of accidental deaths among children under five in Beijing, during 2003-2012 / 中华流行病学杂志

Objective To study the trend of accidental death among children under 5 years of age in Beijing.Methods Cases of death in children under 5 years old in Beijing,during 2003-2012 were collected,to analyze the strength and trends of accidental death,main causes of accident and its epidemiological features. Results The overall accidental death was 8.47% of all death among children under 5 years old in Beijing during 2003-2012. During these 10 years,data showed a downward trend on the mortality rates on injuries(P<0.05),especially on drowning,in 1-4 year old and rural children under five years of age. In 2012,the accidental death rate of children under five was 6.37/105. The 5 main causes of accidental deaths were suffocation,traffic accident,falling,poisoning and drowning,in order of size. The main causes of death were suffocation in the 0-1 year group, suffocation and traffic accident in the 1-2 year group and traffic accident in the 3-4 year group. The proportion of deaths due to traffic accident increased gradually with age. Area distribution showed that accidental deaths mainly happened in rural area(52.19%),with two main types as traffic accident and suffocation. Conclusion The reduction of accidental death rate among children under 5 years old in Beijing mainly was caused by the decline of accident mortality in 1-4 year old and children in the rural areas. Our data suggested that the focus in reducing the accidental death rate among children under 5 years old in Beijing should target on the prevention of infant suffocation and traffic accidents among the 1-4 year old,with rural areas in particular.

Epidemiological study on the trend of accidental deaths among children under five in Beijing, during 2003-2012 / 中华流行病学杂志

Objective To study the trend of accidental death among children under 5 years of age in Beijing.Methods Cases of death in children under 5 years old in Beijing,during 2003-2012 were collected,to analyze the strength and trends of accidental death,main causes of accident and its epidemiological features. Results The overall accidental death was 8.47% of all death among children under 5 years old in Beijing during 2003-2012. During these 10 years,data showed a downward trend on the mortality rates on injuries(P<0.05),especially on drowning,in 1-4 year old and rural children under five years of age. In 2012,the accidental death rate of children under five was 6.37/105. The 5 main causes of accidental deaths were suffocation,traffic accident,falling,poisoning and drowning,in order of size. The main causes of death were suffocation in the 0-1 year group, suffocation and traffic accident in the 1-2 year group and traffic accident in the 3-4 year group. The proportion of deaths due to traffic accident increased gradually with age. Area distribution showed that accidental deaths mainly happened in rural area(52.19%),with two main types as traffic accident and suffocation. Conclusion The reduction of accidental death rate among children under 5 years old in Beijing mainly was caused by the decline of accident mortality in 1-4 year old and children in the rural areas. Our data suggested that the focus in reducing the accidental death rate among children under 5 years old in Beijing should target on the prevention of infant suffocation and traffic accidents among the 1-4 year old,with rural areas in particular.