Table 3.

Associations between age and daily time usage

Outcome, minutes allocated to:	Intercept			Age/10				(Age/10)2
	b	95% CI		b	95% CI		β	b	95% CI		β
		LB	UB		LB	UB			LB	UB
TV	123.70	118.58	128.83	21.83	19.71	23.96	.32	2.04	0.93	3.15	.06
Eating	69.77	67.60	71.94	9.42	8.52	10.32	.31	0.61	0.14	1.08	.04
Rest/relaxation	49.13	45.47	52.79	7.29	5.77	8.82	.14	3.00	2.21	3.80	.11
Reading	14.84	12.98	16.71	6.22	5.44	7.00	.24	1.31	0.91	1.72	.10
Housework	65.89	61.91	69.87	5.66	4.01	7.31	.11	−2.09	−2.95	−1.22	−.08
Gardening	16.88	14.64	19.12	5.41	4.47	6.34	.17	−0.19	−0.68	0.30	−.01
Preparing food	31.08	29.23	32.93	3.47	2.70	4.24	.15	−0.75	−1.15	−0.35	−.06
Shopping	29.07	26.98	31.15	2.93	2.06	3.80	.10	−0.49	−0.95	−0.04	−.03
Healthcare	6.82	5.67	7.97	1.38	0.90	1.86	.07	0.00	−0.26	0.25	.00
Phone	4.81	4.11	5.50	0.49	0.20	0.78	.04	−0.06	−0.21	0.10	−.01
Personal care	28.04	27.01	29.08	0.43	0.00	0.86	.03	0.22	−0.01	0.44	.03
Religion	1.42	0.87	1.97	0.15	−0.08	0.38	.02	0.00	−0.12	0.13	.00
Pet care	9.32	7.87	10.78	0.13	−0.47	0.73	.01	−0.52	−0.84	−0.21	−.06
Sexual activity	0.44	0.11	0.77	−0.16	−0.29	−0.02	−.03	0.02	−0.05	0.09	.01
Sports	11.33	9.50	13.16	−0.17	−0.93	0.59	−.01	0.27	−0.13	0.67	.02
Computer use	25.43	22.23	28.63	−3.40	−4.72	−2.07	−.08	0.66	−0.03	1.35	.03
Socializing	23.94	20.62	27.26	−4.56	−5.95	−3.18	−.10	2.31	1.59	3.04	.09
Commuting	52.55	48.50	56.61	−8.83	−10.51	−7.15	−.15	−0.64	−1.53	0.23	−.02
Childcare	31.91	27.97	35.85	−9.59	−11.21	−7.95	−.20	−1.50	−2.35	−0.65	−.06
Working	215.64	205.40	225.90	−57.75	−61.99	−53.50	−.42	−11.29	−13.50	−9.07	−.16

Note: CI = confidence interval; LB = lower bound; UB = upper bound; 95% CIs for parameter estimates in boldface do not contain zero.