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. 2023 Jul 3;23:722. doi: 10.1186/s12913-023-09746-4

Table 3.

Average treatment effect of widowhood on depression of caregivers

Sample Treatment group Control group ATT SD t
1vs10 Before 0.545 0.422 0.124 0.062 2.000
After 0.553 0.386 0.166** 0.069 2.420
Radius Matching Before 0.545 0.422 0.124 0.062 2.000
After 0.562 0.380 0.182** 0.069 2.620

*p < 0.010, **p < 0.050, ***p < 0.001