Table 1.

Parameter estimates, CIs and P values from the segmented models of cumulative incidence of unnecessary DACT, DDD/admission of ampicillin/sulbactam and DDD/admission of metronidazole

Parameters	Cumulative incidence of unnecessary DACT		DDD/admission of ampicillin/sulbactam		DDD/admission of metronidazole
	coefficient (95% CI)	P value	coefficient (95% CI)	P value	coefficient (95% CI)	P value
Intercept	−4.734 (−6.428 to −3.039)	<0.001	0.280 (0.185–0.376)	<0.001	0.463 (0.378–0.549)	<0.001
Baseline trend	−0.088 (−0.212 to 0.036)	0.16	−0.003 (−0.016 to 0.010)	0.62	−0.014 (−0.025 to −0.002)	0.02
Level change after partial discontinuation of ASP	0.227 (−1.059 to 1.514)	0.73	0.219 (0.092–0.346)	0.002	0.201 (0.087–0.314)	0.001
Trend change after partial discontinuation of ASP	0.065 (−0.115 to 0.245)	0.48	−0.013 (−0.031 to 0.005)	0.15	−0.012 (−0.029 to 0.004)	0.13