Table 2.

Inpatient days and costs by physical activity tertile in the UK Biobank participants

	Physical activity tertile
	1 (least active)	2	3 (most active)
Monthly inpatient days
Incremental effect (95% CI)*	REF	– 0.024 (-0.047,  – 0.001)	– 0.037 ( – 0.059,  – 0.016)
Predicted mean (95% CI)	0.165 (0.144, 0.186)	0.140 (0.123, 0.157)	0.128 (0.116, 0.140)
Predicted mean annual inpatient days†	2.0	1.7	1.5
Monthly inpatient costs
Incremental effect (95% CI)	REF	– £3.09 ( – £5.75,  – £0.42)	– £3.81 ( – £6.71,  – £0.91)
Predicted mean (95% CI)	£27.37 (£25.09, £29.65)	£24.21 (£22.63, £25.78)	£23.52 (£21.67, £25.37)
Percentage difference in costs	REF	-11.5%	-14.1%

^*Bold text indicates significance at 5%. ^†Inpatient days per year were estimated by multiplying days per month by 12