Patient baseline characteristics | Incremental $ | Betaa | 95% CI | P valuea |
---|---|---|---|---|
Intercept | $41,274 | 10.628 | (10.411, 10.845) | < 0.0001 |
Index year | ||||
2015 (Reference) | ||||
2016 | $0 | 0.000 | (-0.152, 0.152) | 0.9999 |
2017 | -$3,219 | -0.081 | (-0.238, 0.075) | 0.3096 |
2018 | -$5,238 | -0.136 | (-0.297, 0.025) | 0.0981 |
2019 | $7,317 | 0.163 | (-0.008, 0.334) | 0.0610 |
Age group, years | ||||
40–54 (Reference) | ||||
55–64 | $1,342 | 0.032 | (-0.068, 0.132) | 0.5307 |
65+ | -$5,944 | -0.156 | (-0.328, 0.017) | 0.0766 |
Sex | ||||
Female (Reference) | ||||
Male | $4,638 | 0.107 | (0.027, 0.186) | 0.0088 |
Census region | ||||
Northeast (Reference) | ||||
Midwest | $3,304 | 0.077 | (-0.031, 0.185) | 0.1631 |
South | $415 | 0.010 | (-0.101, 0.121) | 0.8597 |
West | $8,274 | 0.183 | (0.048, 0.317) | 0.0078 |
Payer type | ||||
Private insurance (Reference) | ||||
Medicare | -$17,125 | -0.536 | (-0.708, -0.364) | < 0.0001 |
Medicaid | -$19,133 | -0.623 | (-0.822, -0.424) | < 0.0001 |
Otherb | $1,965 | 0.047 | (-0.048, 0.141) | 0.3364 |
Plan type | ||||
HMO (Reference) | ||||
PPO | -$3,040 | -0.077 | (-0.182, 0.029) | 0.1565 |
Otherc | -$3,116 | -0.079 | (-0.274, 0.117) | 0.4320 |
Non-respiratory CCI score | $5,272 | 0.120 | (0.096, 0.144) | < 0.0001 |
Comorbidities (yes vs. no) | ||||
Asthma | $1,138 | 0.027 | (-0.058, 0.112) | 0.5303 |
Pneumonia or acute bronchitis/bronchiolitis | $5,669 | 0.129 | (0.047, 0.211) | 0.0021 |
Sinusitis | -$4,729 | -0.122 | (-0.208, -0.035) | 0.0058 |
Sleep apnea | -$4,568 | -0.117 | (-0.207, -0.028) | 0.0101 |
Anxiety/depression | $5,477 | 0.125 | (0.045, 0.204) | 0.0020 |
Cardiovascular disease | -$288 | -0.007 | (-0.093, 0.079) | 0.8726 |
Dyslipidemia | -$4,040 | -0.103 | (-0.191, -0.015) | 0.0220 |
Hypertension | $4,318 | 0.100 | (0.002, 0.197) | 0.0459 |
Systemic autoimmune disease | $9,706 | 0.211 | (0.074, 0.349) | 0.0026 |
Number of prior moderate or severe exacerbations | ||||
0 (reference) | ||||
1 | $3,397 | 0.079 | (-0.027, 0.186) | 0.1453 |
2+ | $5,216 | 0.119 | (0.016, 0.222) | 0.0234 |