Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, China.
Inj Prev. 2010 Feb;16(1):26-30. doi: 10.1136/ip.2009.023481.
To identify recent increases in mortality and morbidity rates from injuries among Americans aged 65 years and over.
A longitudinal analysis of mortality and morbidity data on injuries in the elderly, examining variations in recent trends by cause, sex, race/ethnicity and age group.
USA, mortality rate (2000-6) and morbidity rate (2001-7).
Centers for Disease Control and Prevention's web-based injury statistics query and reporting system online database.
Linear regression was used to examine the statistical significance of trends in mortality and morbidity rates in the study period. The percentage change in rates was used to measure the linear trend. Race/ethnicity was classified into Hispanic (all races except black), non-Hispanic white ('white') and black.
Injury mortality for people aged 65 years and over increased by 3% during 2000-6; morbidity increased by 7% during 2001-7. Falls mortality increased by 42% but emergency department visits for falls did not increase. Significant increases in death rates occurred in motorcycle crashes (145%), machinery (46%), poisoning (34%) and drowning (19%); morbidity rates increased in poisoning (143%), motorcycle crashes (86%), machinery (48%), bicycles (24%), struck by/against (13%) and overexertion (11%). Motor vehicle occupant injuries decreased.
The reported rate of fatal falls for people aged 65 years and over increased by 42% during 2000-6 but non-fatal falls did not increase. Research is needed to explain the inconsistent changes between fatal and non-fatal falls, and to identify risk factors contributing to the significant increases in both fatal and non-fatal injuries from machinery, motorcycle crashes and unintentional poisoning.
确定美国 65 岁及以上人群因伤害导致的死亡率和发病率的近期变化。
对老年人伤害的死亡率和发病率数据进行纵向分析，按病因、性别、种族/族裔和年龄组检查近期趋势的变化。
美国，死亡率（2000-6 年）和发病率（2001-7 年）。
疾病控制和预防中心基于网络的伤害统计数据查询和报告系统在线数据库。
线性回归用于检验研究期间死亡率和发病率的趋势是否具有统计学意义。使用变化百分比来衡量线性趋势。种族/族裔分为西班牙裔（除黑人以外的所有种族）、非西班牙裔白人（“白人”）和黑人。
2000-6 年期间，65 岁及以上人群的伤害死亡率上升了 3%；2001-7 年期间，发病率上升了 7%。跌倒死亡率上升了 42%，但跌倒急诊就诊人数没有增加。摩托车事故（145%）、机械事故（46%）、中毒（34%）和溺水（19%）的死亡率显著上升；中毒（143%）、摩托车事故（86%）、机械事故（48%）、自行车事故（24%）、被撞/被击（13%）和过度劳累（11%）的发病率上升。机动车乘客受伤减少。
2000-6 年期间，65 岁及以上人群因跌倒导致的致命伤害报告率上升了 42%，而非致命跌倒率没有上升。需要研究来解释致命和非致命跌倒之间变化不一致的原因，并确定导致机械事故、摩托车事故和意外中毒导致致命和非致命伤害显著增加的危险因素。
