Study of the impact of experiencing early parental death on the lifespan of the elderly in China
Objective To explore the impact of early parental death(i.e.,death of father or mother)on the life span of the elderly in China.Methods The tracking data from the Chinese longitudinal healthy longevity survey(CLHLS)from 2002 to 2021 were utilized to acquire information on individual mortality/loss to follow-up outcomes and variables such as early parental death.Differences between groups were assessed using the x2 test.Univariate survival analysis employed the Kaplan-Meier method,while multivariate survival analysis employed the accelerated failure time model(AFT),with the risk of occurrence expressed as the time ratio(TR).Sensitivity analysis was conducted by multiple linear regression.Results A total of 10 278 individuals were recruited as study participants,of whom 7 738 passed away,with an average age of 92.49±9.35 years.358 survived and 2 182 were lost to follow-up.The Kaplan-Meier analysis revealed a P-value of 0.002 and the median survival time for non-early parental death was 95 years old(95％CI:94.654-95.346)whereas the median survival time for early parental death was 94 years old(95％CI:93.494-94.506).with the difference was statistically significant.After adjusting for control variables,the AFT model analysis indicated that the average lifespan of those who had experienced early parental death was 0.994 2 that of those who had not(95％CI:0.990 3-0.998 2,P=0.004),indicating that experiencing early parental death reduces an individual's average lifespan by 0.58％.Conclusions Experiencing early parental death will lead to a shortened life span.It is necessary to study and intervene the early parental death as a risk factor,thereby narrowing the health gap and improving the national health level.
Parental deathElderlyLifespanAccelerated failure time modelTime ratio
NETL
NSTL
万方数据
