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. 2020 Mar 24;8:e8774. doi: 10.7717/peerj.8774

Table 1. Patients’ baseline characteristic before and after the matching procedure.

Unmatched Matched Standardized mean difference
Office workers (n = 170) Unemployed people (n = 270) Office workers (n = 157) Unemployed people (n = 157)
n (%) n (%) n (%) n (%)
Age mean (SD) 38.3 (10.0) 35.7 (13.8) 38.3 (10.4) 38.9 (12.4) −0.05
Males n (%) 145 (85.2) 217 (80.3) 133 (84.7) 124 (79.0) −0.16
Females n (%) 25 (14.7) 53 (19.6) 24 (15.3) 33 (21.0) 0.16
Propensity score 0.403 0.390 0.402 0.398 0.07