Miller Vanessa E, Pence Brian W, Swilley-Martinez Monica E, Fitch Kate Vinita, Kavee Andrew L, Perera Pasangi S, Song Zoey, Alam Ishrat Z, Gaynes Bradley N, Carey Timothy S, Goldston David B, Ranapurwala Shabbar I
Injury Prevention Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
Injury Prevention Research Center, University of North Carolina, Chapel Hill, North Carolina, USA.
Inj Prev. 2025 Jun 8. doi: 10.1136/ip-2024-045497.
To assess the impact of the COVID-19-related stay-at-home (SAH) order in North Carolina (NC) on suicide mortality.
We used controlled interrupted time series to examine weekly suicide death rates before, during and after the SAH order compared with 2015-2019 rates.
Between 1 January 2020 and 30 March 2020, the suicide death rate in NC was stable. On SAH order implementation, there was an immediate decline in the suicide rate of 2.0 deaths per 100 000 person-years (PYs) (95% CI -7.7, 3.7) during the first SAH week, relative to combined weekly data 2015-2019, followed by a sustained decline of 1.0 death per 100 000 PYs (95% CI -2.0, 0.1) per week over the eight weeks under SAH. On lifting the SAH order, we observed an immediate increase in suicide (3.7 per 100 000 PYs (95% CI -0.7, 8.2)) and from that point through the end of 2020, suicide mortality increased at a rate of 0.7 per 100 000 PYs (95% CI -0.2, 1.6) per week.
During the SAH period, suicide mortality declined for 8 weeks but returned to prior rates after the SAH order was lifted. Increased family supervision and decreased access to lethal means may explain the observed reduction in suicide during the SAH order.
评估北卡罗来纳州（NC）与2019冠状病毒病相关的居家令对自杀死亡率的影响。
我们采用对照中断时间序列，将居家令实施前、期间和之后的每周自杀死亡率与2015 - 2019年的死亡率进行比较。
2020年1月1日至2020年3月30日期间，北卡罗来纳州的自杀死亡率保持稳定。在居家令实施后，相对于2015 - 2019年的合并周数据，在居家令实施的第一周，自杀率立即下降，每10万人年（PYs）减少2.0例死亡（95%置信区间 -7.7, 3.7），随后在居家令实施的八周内，每周持续下降，每10万PYs减少1.0例死亡（95%置信区间 -2.0, 0.1）。在解除居家令后，我们观察到自杀率立即上升（每10万PYs增加3.7例（95%置信区间 -0.7, 8.2）），从那时起直至2020年底，自杀死亡率以每周每10万PYs增加0.7例（95%置信区间 -0.2, 1.6）的速度上升。
在居家令期间，自杀死亡率在8周内有所下降，但在居家令解除后又恢复到先前水平。家庭监督增加和获取致命手段的机会减少可能解释了居家令期间观察到的自杀率下降现象。
