Table 1.

Means, standard deviations, and intercorrelations among the variables that constitute the biological aging composite measures in the Berlin Aging Study (below the diagonal) and the Berlin Aging Study II (above the diagonal)

	Intercorrelations
	1	2	3	4	5	6	7	8	9	10	11	12
MBASE-II	12.43	139.57	102.10	5.34	62.24	8.76	3.47	5.60	13.85	5.81	1.70	68.84
SDBASE-II	1.82	2.77	2.90	1.34	3.23	1.47	0.61	0.51	1.13	2.08	1.24	11.10
(1) Zinc (4.70–17.80)	1	.11	–.01	.02	.05	–.01	–.06	.05	.17	–.01	–.01	.01
(2) Sodium (131–150)	.14	1	.61	.01	.14	–.11	–.09	–.11	.05	–.04	–.03	–.04
(3) Chloride (92–122)	.02	.45	1	–.03	.08	–.05	–.03	–.14	–.03	–.04	.00	–.02
(4) Uric acid (1.50–12.50)	–.14	–.09	–.13	1	–.17	.12	.06	.18	.31	.18	.10	–.32
(5) Albumin (42.80–72.50)	.31	.10	.08	–.19	1	–.50	–.40	–.23	.05	–.10	.02	.03
(6) Alpha-1 globulin (1.90–5.30)	–.08	.08	.05	–.00	–.28	1	.61	.29	–.04	.17	.03	–.02
(7) Alpha-2 globulin (5.00–16.80)	–.05	–.02	–.02	.13	–.41	.34	1	.12	–.01	.12	.03	.00
(8) HbA1c (3.90–12.10)	–.02	–.22	–.16	.11	–.06	–.01	.20	1	–.02	.14	.08	–.05
(9) Hemoglobin (7.00–18.50)	.25	.05	–.05	–.00	.17	–.08	–.10	.02	1	.06	.01	.03
(10) Leukocytes (2.10–13.00)	–.04	–.00	–.05	.13	–.15	.16	.18	.11	.17	1	.78	–.10
(11) Lymphocytes (0.30–5.00)	.09	.04	.02	.01	.02	–.05	–.02	.08	.20	.50	1	–.04
(12) Creatinine (13.86–131.60)	.12	.01	.05	–.43	.14	.09	–.21	–.13	.29	–.03	.11	1
MBASE	11.37	141.18	104.27	5.45	57.65	3.55	9.54	6.28	14.00	6.63	1.71	52.18
SDBASE	1.98	2.78	3.91	1.53	4.37	0.61	1.56	1.23	1.46	1.82	0.64	16.26

N = 384. Intercorrelations in bold differ significantly from zero at p < .05