Korean Journal of Clinical Geriatrics

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Table. 1.

Table. 1.

Demographic characteristics of patients

Variable Oxygen therapy
Total (N=540) Yes (N=119) No (N=421) P-value*
Age, yr (mean±SD) 66.1±6.4 70.8±4.4 64.8±6.2 <0.001
50-54 23 2 (9) 21 (91)
55-59 44 5 (11) 39 (89)
60-64 97 14 (14) 83 (86)
65-69 174 35 (20) 139 (80)
70-74 113 30 (27) 83 (73)
75-79 76 27 (36) 49 (64)
80-84 13 6 (46) 7 (54)
Sex 0.790
Male 271 61 (22.5) 210 (77.5) 1.000
Female 269 58 (21.6) 211 (78.4) 1.000
Comorbidity
HTN 224 67 (29.9) 157 (70.1) <0.001
DM 131 31 (23.7) 100 (76.3) 0.606
CVD 50 14 (28.0) 36 (72.0) 0.286
COPD 19 5 (26.3) 14 (73.7) 0.583
CVA 14 4 (28.6) 10 (71.4) 0.521
CKD 2 0 (0.0) 2 (100.0) 1.000
Malignancy 11 2 (18.2) 9 (81.8) 1.000
Etc. 171 40 (23.4) 131 (76.6) 0.605
None 169 28 (16.6) 141 (83.4) 0.039
Smoking       0.029
Current 42 14 (33.3) 28 (66.7)
Ex. 39 13 (33.3) 26 (66.7)
Never 217 92 (20.0) 367 (80.0)

Data is presented as number (% left subtotal), unless otherwise indicated.

N, patient numbers; HTN, hypertension; DM, diabetes mellitus; CVD, cardiovascular disease; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident; CKD, chronic kidney disease.

*P-value by Chi-square test. P-value by Student's t-test. P-value by Fisher's exact test.

Korean J Clin Geri 2021;22:75-85 https://doi.org/10.15656/kjcg.2021.22.2.75
© 2021 Korean J Clin Geri