Table 3. Segmented regression analysis of effect of stopping cycling on the incidence of HA-CDI, HA-MRSA, and new ESBL isolates in Antrim Area Hospital, Northern Ireland, UK*.

Variable	Coefficient	95% CI	SE	p value
HA-CDI
Constant	0.0173	0.0062 to 0.0284	0.0054	<0.01
Trend	4.73 × 10−4	−0.0003 to 0.0012	0.0004	0.22
Change
In level	−0.0159	−0.0352 to 0.0033	0.0094	0.10
In trend	0.0005	−0.0018 to 0.0028	0.0011	0.65
HA-MRSA
Constant	0.0598	0.0388 to 0.0810	0.0102	<0.01
Trend	0.0012	−0.0002 to 0.0027	0.0007	0.10
Change
In level	−0.0350	−0.0711 to −0.001	0.0179	0.06
In trend	−0.0016	−0.002 to 0.0027	0.0022	0.45
New ESBL
Constant	0.0438	0.0200 to 0.0672	0.0115	<0.01
Trend	0.0005	−0.0011 to 0.0021	0.0008	0.56
Change
In level	0.0419	0.0017 to 0.0820	0.0199	0.04
In trend	−0.0026	−0.0074 to 0.0023	0.0024	0.30

*In this hospital, a cycling policy was in place during October 2013–September 2015, and a standard policy was in place during October 2015–September 2016. Bold indicates statistical significance. ESBL, extended-spectrum β-lactamase; HA-CDI, healthcare-associated Clostridioides difficile infection; HA-MRSA, healthcare-associated methicillin-resistant Staphylococcus aureus.