What This Means
This research suggests that difficult childhood experiences — such as abuse or growing up in a dysfunctional family environment — are strongly linked to mental health problems like depression, anxiety, and suicidal thoughts in adults who work shifts in the aviation industry in China. The study surveyed over 19,000 aviation workers and found that about 1 in 4 had experienced at least one adverse childhood experience (ACE). Using a statistical technique called latent class analysis, the researchers grouped workers into three categories based on their childhood experiences: those with few or no ACEs (the vast majority), those with a history of abuse, and those from dysfunctional family backgrounds. Workers who grew up in dysfunctional families had the most elevated mental health risks — more than five times the odds of depression, nearly four times the odds of anxiety, and more than four times the odds of suicidal ideation compared to those with low ACE exposure.
The findings also show a 'dose-response' pattern, meaning the more types of adverse childhood experiences a person reported, the greater their risk of mental health symptoms as an adult. This pattern held even though the vast majority of workers had low ACE exposure, with only about 1 in 100 reporting four or more types of childhood adversity. Aviation shift workers — who already face high stress, irregular schedules, and demanding safety responsibilities — may be especially vulnerable to these effects.
This research suggests that workplaces in high-stress industries like aviation should consider screening for and addressing the mental health needs of employees who may have experienced childhood adversity. Because the study was conducted at a single point in time and relied on workers recalling childhood events, it cannot prove that ACEs directly caused these mental health outcomes, and the authors note that recall bias and other limitations apply. Nevertheless, the findings highlight a potentially important and underrecognized factor in occupational mental health for shift workers.