Table 3.
Multivariable predictors of CRT-D implantation
| CRT-D All | CRT-D Female | CRT-D Male OR (95% CI) | |
|---|---|---|---|
| OR (95% CI) | OR (95% CI) | ||
| Male | 1.80 (1.71–1.90) | - | - |
| Calendar Yeara | 0.90 (0.88–0.93) | 0.88 (0.86–0.91) | 0.92 (0.89–0.94) |
| Age | |||
| 18–54 | ref | Ref | ref |
| 55–64 | 0.92 (0.81–1.04) | 0.99 (0.81–1.21) | 0.87 (0.75–1.01) |
| 65–74 | 0.65 (0.57–0.74) | 0.70 (0.57–0.86) | 0.61 (0.53–0.71) |
| 75–84 | 0.39 (0.34–0.44) | 0.38 (0.31–0.47) | 0.38 (0.33–0.44) |
| ≥85 | 0.12 (0.11–0.14) | 0.12 (0.09–0.15) | 0.12 (0.10–0.15) |
| Race | |||
| White | ref | ref | ref |
| Black | 1.61 (1.40–1.86) | 1.79 (1.48–2.16) | 1.48 (1.26–1.75) |
| Otherb | 1.10 (0.97–1.25) | 1.20 (1.00–1.44) | 1.05 (0.91–1.21) |
| Primary payer | |||
| Private | Ref | Ref | Ref |
| Medicare | 1.16 (1.07–1.26) | 1.09 (0.94 -1.26) | 1.20 (1.09 -1.31) |
| Medicaid | 1.25 (1.06–1.47) | 1.17 (0.93–1.47) | 1.30 (1.05–1.61) |
| Otherc | 0.95 (0.79–1.13) | 0.91 (0.69–1.20) | 0.97 (0.79–1.20) |
| Elective admission | 1.30 (1.20–1.40) | 1.24 (1.11–1.38) | 1.32 (1.22–1.43) |
| Region | |||
| Midwest | ref | ref | ref |
| Northeast | 1.65 (1.33–2.07) | 1.76 (1.39–2.28) | 1.59 (1.25–2.03) |
| South | 1.06 (0.87–1.30) | 1.09 (0.88–1.35) | 1.04 (0.84–1.29) |
| West | 1.06 (0.88–1.27) | 1.00 (0.82–1.23) | 1.09 (0.89–1.33) |
| Hospital location/teaching | |||
| Urban, teaching | ref | ref | ref |
| Urban, non-teaching | 1.14 (0.98–1.32) | 1.11 (0.94–1.32) | 1.16 (0.99–1.35) |
| Rural | 0.60 (0.33–1.08) | 0.52 (0.29–0.96) | 0.65 (0.36–1.18) |
| Coronary artery disease | 2.60 (2.43–2.77) | 2.60 (2.37–2.85) | 2.58 (2.37–2.81) |
| Ventricular arrhythmia | 3.71 (3.36–4.10) | 3.93 (3.38–4.56) | 3.62 (3.22–4.06) |
| Elixhauser indexd | 0.96 (0.94–0.99) | 0.96 (0.93–0.99) | 0.97 (0.94–1.00) |
| CRT response variablese | |||
| 0 | 0.27 (0.24–0.31) | 0.16 (0.13–0.19) | 0.40 (0.35–0.47) |
| 1–2 | 0.35 (0.32–0.37) | 0.24 (0.21–0.27) | 0.47 (0.43–0.52) |
| ≥3 | ref | ref | ref |
a
2006–12.
b
Includes Hispanic, Asian or Pacific Islander, Native American, and other.
c
Includes self-pay, no charge, and other.
d
Measures 27 comorbidities of the Elixhauser index.
e
Comprised of four conditions associated with an increased likelihood of left ventricular reverse remodeling following CRT: non-ischaemic cardiomyopathy, left bundle block, absence of chronic kidney disease, and absence of atrial fibrillation.