Estimating the effect of practicing nursing professionals density on cumulative carbapenem-resistance prevalence in gram-negative invasive Isolates: a 30 European country observational modeling study

Table 2 Summary of the multivariate log–log models obtained in this study

Model	adj.-R² (%)	Method	Dependent variable	ß₀		Nurses	DDD	CPI	log_Acpr	intEAPD	intEAlos	intEAlos_H
M1.M	93.5	Step-wise forward selection	log_CRGN (n = 30)	0.238^Ø	b	− 0.085^*	0.030^*	− 0.007^**	0.549^***
M1.M	93.5	Step-wise forward selection	log_CRGN (n = 30)	0.238^Ø	ß	− 0.221	0.133	− 0.321	0.462
M2.M	93.8	Step-wise forward selection	log_CRGN (n = 30)	− 0.150^**	b		0.034^**	− 0.008^***	0.432^***	− 0.114^**
M2.M	93.8	Step-wise forward selection	log_CRGN (n = 30)	− 0.150^**	ß		0.148	− 0.350	0.364	− 0.270
M3.M	92.7	Forced entry	log_CRGN (n = 30)	0.100^Ø	b		0.032^*	− 0.009^***	0.494^***		− 0.519^*
M3.M	92.7	Forced entry	log_CRGN (n = 30)	0.100^Ø	ß		0.141	− 0.382	0.416		− 0.202
M4.M	93.3	Forced entry	log_CRGN (n = 27)	0.567^Ø	b		0.033^*	− 0.011^***	0.443^***			− 0.730^*
M4.M	93.3	Forced entry	log_CRGN (n = 27)	0.567^Ø	ß		0.145	− 0.477	0.372			− 0.156

adj.-R²: adjusted coefficient of determination, ß₀: intercept, b: regression coefficient, ß: standardized regression coefficient. Only variables with significant regression coefficients were retained by the respective model through step-wise forward selection (inclusion cut-off p < 0.05; exclusion cut-off p ≥ 0.10) unless otherwise indicated. Ø denotes p > 0.05, * denotes p < 0.05, ** denotes p < 0.01, *** denotes p < 0.001. Information on log-linear models M1.S, M2.S and M3.S are provided in the Supplementary Material, section ‘Model equations’

ISSN: 2047-2994