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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Sleep Breath. 2018 Jun 22;23(1):193–200. doi: 10.1007/s11325-018-1680-0

Table 3.

Pre- and Post-PAP use and outcomes by subgroups in patients with Overlap Syndrome.

ER Visits
All Cause COPD-related
One year pre-initiation of PAP One year post-initiation of PAP 1 P-Values One year pre-initiation of PAP One year post-initiation of PAP 1 P-Values
Age group 66–74 (N=173) 92(53.18) 88(50.87) 0.59 28(16.18) 26(15.03) 0.71
≥75 (N=146) 80(54.79) 87(59.59) 0.33 25(17.12) 17(11.64) 0.13
Low socioeconomic status Yes (N=56) 39(69.64) 37(66.07) 0.65 14(25.00) 12(21.43) 0.56
No (N=263) 133(50.57) 138(52.47) 0.59 39(14.83) 31(11.79) 0.23
Number of comorbidities <3 (N=118) 42(35.59) 49(41.53) 0.26 10(8.47) 12(10.17) 0.56
≥3 (N=201) 130(64.68) 126(62.69) 0.63 43(21.39) 31(15.42) 0.07
Gender Male (N=192) 97(50.52) 102(53.13) 0.54 26(13.54) 23(11.98) 0.58
Female (N=127) 75(59.06) 73(57.48) 0.75 27(21.26) 20(15.75) 0.18
COPD complexity Low (N=83) 26(31.33) 38(45.78) 0.04 0 5(6.02) -
Moderate and High (N=236) 146(61.86) 137(58.05) 0.29 53(22.46) 38(16.10) 0.04
Hospitalization
All Cause COPD-related
One year pre-initiation of PAP One year post-initiation of PAP 1 P-Values One year pre-initiation of PAP One year post-initiation of PAP 1 P-Values
Age group 66–74 84(48.55) 79(45.66) 0.51 47(27.17) 39(22.54) 0.19
≥75 69(47.26) 67(45.89) 0.80 34(23.29) 23(15.75) 0.07
Low socioeconomic status Yes 32(57.14) 29(51.79) 0.49 21(37.50) 16(28.57) 0.20
No 121(46.01) 117(44.49) 0.69 60(22.81) 46(17.49) 0.07
Number of comorbidities <3 29(24.58) 36(30.51) 0.27 14(11.86) 15(12.71) 0.83
≥3 124(61.69) 110(54.73) 0.11 67(33.33) 47(23.38) 0.007
Gender Male 92(47.92) 86(44.79) 0.49 46(23.96) 29(15.10) 0.01
Female 61(48.03) 60(47.24) 0.88 35(27.56) 33(25.98) 0.72
COPD complexity Low 13(15.66) 25(30.12) 0.02 0 6(7.23) -
Moderate and High 140(59.32) 121(51.27) 0.04 81(34.32) 56(23.73) 0.003

Definition of abbreviations: PAP = Positive Airway Pressure; ER = Emergency Room; COPD = Chronic Obstructive Pulmonary Disease.

1

P-values were generated from McNemar test.