Table 5. Prognostic accuracy of the total score PACD resp. SPI compared to combined PACD/SPI.

Medical patients
	Risk for PAC discharge	sensitivity	specifity	positive predictive value (%)	negative predictive value (%)
PACD	Intermediate+High Riska	72.7%	65.4%	20.9%	95%
	High Risk	22.7%	93.8%	31.5%	90.6%
SPI	Riskc	64.0%	83.7%	32.8%	94.9%
PACD/SPI	Intermediate+High Riskb	68%	82%	32.3%	95.3%
	High Risk	34.7%	93.7%	40.9%	91.9%
Neurological patients
	Risk for PAC discharge	sensitivity	specifity	positive predictive value (%)	negative predictive value (%)
PACD	Intermediate+High Riska	40.4%	80.8%	39.2%	81.6%
	High Risk	6.4%	98.1%	50%	77.4%
SPI	Riskc	58.5%	85.1%	54.5%	87.0%
PACD/SPI	Intermediate+High Riskb	55.3%	85.4%	53.6%	86.2%
	High Risk	30.9%	95.8%	69%	81.9%

^a cut-off: intermediate ≥8; high: ≥16

^b cut-off: intermediate: >15; high: >25

^c cut-off: risk ≤32

Abbreviations: PAC: post-acute care; PACD: post-acute care discharge score; SPI: self-care index