TABLE 2.

FCI Distribution by ICD Lexicon, Calendar Quarter (2015), Gender, Age, and State

Variable	N	Maximum*	Median (IQR)	Mean (SD)
Overall	5,644,720	13	2 (3)	1.87 (1.66)
Lexicon
ICD-9-CM	4,239,818	13	2 (3)	1.87 (1.66)
ICD-10-CM	1,404,902	13	2 (3)	1.88 (1.68)
Calendar quarter
2015 Q1	1,405,729	13	2 (2)	1.89 (1.65)
2015 Q2	1,424,145	12	2 (3)	1.88 (1.66)
2015 Q3	1,409,944	13	2 (3)	1.83 (1.65)
2015 Q4	1,404,902	13	2 (3)	1.88 (1.68)
Gender
Male	2,337,089	13	2 (2)	2.00 (1.58)
Female	3,247,413	13	1 (3)	1.77 (1.72)
Age
18–24	353,770	10	0 (1)	0.62 (0.92)
25–34	771,877	10	0 (1)	0.63 (1.00)
35–44	552,359	11	1 (2)	1.17 (1.35)
45–54	690,842	12	2 (2)	1.86 (1.57)
55–64	933,617	12	2 (2)	2.22 (1.66)
65–74	971,355	13	2 (3)	2.49 (1.68)
75–84	807,083	12	2 (3)	2.55 (1.62)
85+	563,817	12	2 (2)	2.41 (1.55)
State
Arizona	616,399	11	2 (3)	1.81 (1.61)
Colorado	391,069	12	1 (3)	1.75 (1.65)
Michigan	1,074,377	13	2 (2)	2.31 (1.83)
New Jersey	844,415	12	2 (3)	1.76 (1.58)
New York	1,966,178	13	1 (3)	1.75 (1.58)
Utah	216,037	10	1 (2)	1.47 (1.44)
Washington	536,245	12	2 (3)	1.89 (1.70)

^*Minimum FCI value uniformly 0

FCI indicates Functional Comorbidity Index; ICD, International Classification of Diseases; IQR, interquartile range; Q, quarter, SD, standard deviation.