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. 2024 Aug 20;3:e55820. doi: 10.2196/55820

Table 2.

The details of 1-N matching (N=158).

Status SMDa Variance ratio
Race

White


Before matching 0.1526 0.8896


After matching 0.0188 0.9869

Black


Before matching –0.0351 0.9065


After matching –0.0385 0.8979

Other


Before matching –0.1453 0.8317


After matching 0.0060 1.0141
Income

<US $20,000 per year


Before matching 0.4106 1.7267


After matching –0.0178 0.9913
Sex

Male


Before matching 0.1049 1.0108


After matching 0.0069 1.0045
Marital status

Married


Before matching –0.3400 0.7332


After matching 0.0094 1.0180

Widowed


Before matching –0.0866 0.4867


After matching -0.0019 0.9863

Divorced or separated


Before matching 0.3862 2.3224


After matching 0.0324 1.0534

Never married


Before matching 0.1467 1.0195


After matching –0.0077 1.0053
Working condition

Working ≥35 hours per week


Before matching –0.3279 0.7921


After matching 0.0391 1.0520

Other groups of working condition


Before matching –0.0608 0.8793


After matching 0.0069 1.0212
BMI

Before matching –0.0464 1.2435

After matching 0.0169 1.0244

aSMD: standardized mean difference.