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Retrospective Study
Copyright: ©Author(s) 2026.
World J Psychiatry. Sep 19, 2026; 16(9): 118536
Published online Sep 19, 2026. doi: 10.5498/wjp.118536
Table 1 Comparison of baseline data between two groups, mean ± SD/n (%)
Baseline data
Control group (n = 77)
Observation group (n = 77)
t/χ2 value
P value
Age (years)58.93 ± 6.4159.57 ± 7.350.5760.566
Gender0.2440.621
Male45 (58.44)48 (62.34)
Female32 (41.56)29 (37.66)
Marital status0.5590.455
Have spouse60 (77.92)56 (72.73)
No spouse17 (22.08)21 (27.27)
Smoking history0.1070.744
Have46 (59.74)44 (57.14)
No31 (40.26)33 (42.86)
Standard of culture0.1990.905
Junior high school and below39 (50.65)40 (51.94)
High school/vocational school25 (32.47)26 (33.77)
College degree or above13 (16.88)11 (14.29)
Living0.1160.733
Living alone27 (35.06)25 (32.47)
Not living alone50 (64.94)52 (67.53)
Medical payment method0.1450.703
Medical insurance/commercial insurance58 (75.32)60 (77.92)
At his own expense19 (24.68)17 (22.08)
Merge other underlying diseases0.2470.619
Yes46 (59.74)49 (63.64)
No31 (40.26)28 (36.36)
Course of COPD (years)6.45 ± 1.766.79 ± 1.811.1820.239


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