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Outcome
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Matching algorithm
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Coeffa
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Bias before matching
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Bias after matching
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p-value
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|---|
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Mental health problems
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kernel
|
0.038
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4.887
|
1.627
|
p < 0.001
|
|
nearest neighbor
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0.039
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4.887
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0.646
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p < 0.01
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|
5 nearest neighbor
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0.033
|
4.887
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1.604
|
p < 0.001
|
|
radius
|
0.039
|
4.887
|
0.646
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p < 0.01
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- Coeff: estimated coefficient
- a PSM were adjusted by sex, age groups, marital status, educational level, time living in Peru, perceived social support and socio-economic status