Correction: Performance of risk prediction scores for cardiovascular mortality in older persons: External validation of the SCORE OP and appraisal.

[This corrects the article DOI: 10.1371/journal.pone.0231097.].

There are errors in the layout of Table 2. Please see the correct Table 2 here.

Table 2

Risk scores: measures of validity.

Risk scorea	Predicted number of fatal cardiovascular events	Actual number of fatal cardiovascular eventsb	Predicted/ Actual ratio	Nam-D’Agostino chi-square(p-value)	C-indexc (95% CI)
SCORE OPhigh-risk regions					0.79(0.75 to 0.83)
SCORE OP-H 5y	302	142	2.13	139.16(p<0.001)
SCORE OP-H	677	399	1.70	327.9(p<0.001)
SCORE OPlow-risk regions					0.80(0.75 to 0.83)
SCORE OP-L 5y	215	142	1.51	39.68(p<0.001)
SCORE OP-L	519	397	1.31	76.29(p<0.001)
SCORE-H	372	382	0.97	29.68(p = 0.001)	0.72(0.67 to 0.76)
SCORE-L	258	384	0.67	117.63(p<0.001)	0.72(0.67 to 0.77)

aSCORE OP[22] and SCORE[13] systems have been previously described elsewhere. H and L indicate high- and low- cardiovascular risk regions. 5y indicates 5-year risk equations. All other scores listed are 10-year versions.

bWeibull regression model projections beyond the observed follow-up are reported for 10-year risk scores, leading to small differences in the number of actual events. 5-year risk scores use observed Berlin Initiative Study data only using the Kaplan-Meier estimator.

cRisk score discrimination capability was assessed using the entire observed follow-up data.