Table 1.

The expected values with 90% limits of skeletal muscle mass index and fat mass index at the 5 year follow‐up for men and women, starting at four different values (corresponding to z‐scores −2, −1, 1, 2) of skeletal muscle mass index and fat mass index for ages 40, 50, and 60

	Age (years)	SMMI				FMI
		Baseline	After 5 years			Baseline	After 5 years
			5% lower limit	Expected	5% upper limit		5% lower limit	Expected	5% upper limit
Men	40	7.45	7.04	7.45	7.86	2.56	1.99	3.07	4.41
		8.18	7.72	8.14	8.59	4.15	3.21	4.57	6.13
		9.95	9.25	9.83	10.53	8.56	6.49	8.5	11.28
		11.31	10.28	11.08	12.14	12.3	8.77	11.64	15.53
	50	7.27	6.83	7.26	7.7	2.86	2.23	3.35	4.72
		8.01	7.5	7.95	8.44	4.56	3.56	4.96	6.53
		9.85	9.03	9.67	10.44	9.21	7.07	9.09	11.84
		11.27	10.07	10.94	12.11	13.14	9.48	12.36	16.16
	60	7.04	6.56	7.02	7.48	3.13	2.48	3.64	4.99
		7.77	7.22	7.69	8.2	4.91	3.91	5.3	6.8
		9.59	8.69	9.33	10.1	9.58	7.48	9.36	11.81
		10.99	9.64	10.5	11.62	13.37	9.83	12.41	15.69
Women	40	5.77	5.56	5.84	6.16	3.99	3.35	4.39	5.77
		6.23	5.95	6.28	6.66	5.71	4.67	6.13	8.04
		7.58	6.98	7.53	8.27	12.38	9.09	12.02	16.06
		8.85	7.77	8.62	9.9	18.94	12.81	17.17	23.24
	50	5.75	5.5	5.79	6.11	4.27	3.63	4.86	6.4
		6.23	5.9	6.24	6.63	6.26	5.23	6.86	8.86
		7.63	6.95	7.51	8.27	13.02	10.07	12.91	16.66
		8.94	7.76	8.61	9.87	19.05	13.79	17.81	23.08
	60	5.71	5.49	5.78	6.1	4.71	3.96	5.31	6.92
		6.19	5.89	6.23	6.62	6.93	5.76	7.45	9.37
		7.58	6.93	7.47	8.18	13.51	10.63	13.16	16.37
		8.81	7.7	8.49	9.59	18.88	14.04	17.47	21.76

FMI, fat mass index; SMMI, skeletal muscle mass index.