Table 4.

Within age comparisons of the strength of association between lifestyle factors and sleep health.

	MVPA Minutes vs. Daily % Sedentary		Daily Social Media vs. Daily Internet Time
	Z	p	Z	p
Younger adults	0.982	0.163	0.666	0.253
Middle-aged	2.611	0.005	1.043	0.148
Older adults	3.691	0.001	−1.829	0.034

Notes: MVPA = moderate to vigorous physical activity. Bolded values are statistically significant.