Table 2.

Threshold effect analyses of total moderate-to-vigorous physical activity (MVPA) on the risk of incident nonalcoholic fatty liver disease (NAFLD) using two-piecewise regression models

Total MVPA, min/week	Total	Events(ratea)	Crude model		Adjusted modelb
			HR (95% CI)	P value	HR (95% CI)	P value
< 208	40,059	386 (1.4)	0.51 (0.43, 0.61)	< 0.001	0.68 (0.57, 0.81)	< 0.001
≥ 208	48,597	176 (0.5)	0.89 (0.82, 0.96)	0.004	0.91 (0.84, 0.99)	0.028

^aIncidence rates were expressed as per 10,000 person-years

^bAdjusted for age, sex, ethnicities, recruitment center, Townsend deprivation index, educational attainment, household income, employment, smoking status, alcohol consumption, body mass index, and the total time and season of accelerometer wear