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Table. 1.

Table. 1.

Patients characteristics of subjects before and after inverse probability of treatment weighting

Patients characteristics Frequency, n (%) Variance Ratio


Mild AD group n=47.054 (%) Moderate to severe AD group n=44,447 (%) Before Weighting After weighting
Sex 1.0016 1.0000
Male 24,610 (52.30) 22,741 (51.16)
Female 22,444 (47.70) 21,706 (48.84)
Insurance Type 1.7200 0.9968
Health insurance 46,312 (98.42) 43,227 (97.26)
Medical aid 742 (1.58) 1,220 (2.74)
Age group (years)
Preschool children (<7) 36,250 (77.04) 22,007 (49.51)
School age children (≥7, <12) 7,808 (16.59) 11384 (25.61)
Adolescents (≥12, <18) 2,996 (6.37) 11,056 (24.87)
Confounding diseases
Systemic Infection
Meningitis 128 (0.27) 143 (0.32) 1.1821 0.9960
Bone & joint infection 36 (0.08) 57 (0.13) 1.6753 0.9739
Sepsis 546 (1.16) 267 (0.60) 0.5206 0.9980
Hepatitis 260 (0.55) 252 (0.57) 1.0259 1.0027
Chronic kidney disease 1 (<0.01) 4 (0.01) 4.2343 0.9826
Heart failure 43 (0.09) 55 (0.12) 1.3537 1.0241
Diabetes mellitus 133 (0.28) 219 (0.24) 1.7395 0.9769
Mental Disorder
Depression 65 (0.14) 212 (0.48) 3.4411 0.9686
Anxiety 236 (0.50) 399 (0.90) 1.7827 0.9669
Chronic Inflammation
Peptic ulcer disease 530 (1.13) 984 (1.08) 1.9439 0.9950
COPD 915 (1.94) 931 (2.09) 1.0755 0.9972
SLE 8 (0.02) 29 (0.07) 3.8358 1.1732
Rheumatoid arthritis 41 (0.09) 102 (0.23) 2.6300 0.9676
Irritable bowel disease 13 (0.03) 16 (0.04) 1.3028 0.9826
Cancer 41 (0.09) 85 (0.19) 2.1925 0.9901
Anemia Diagnosis
ACD 0 (0.00) 2 (<0.01)
Iron deficiency anemia 1,738 (3.69) 2,285 (5.14)

AD: atopic dermatitis, COPD: Chronic obstructive pulmonary disease, SLE: Systemic lupus erythematosus, ACD: Anemia of chronic disease

Korean J Clin Pharm 2020;30:264-9 https://doi.org/10.24304/kjcp.2020.30.4.264
© 2020 Korean J Clin Pharm