Table 1.

Demographic characteristic of the study population (n = 96 856) observed from 2000–2016

Individuals	96,856	100% (%)
Age at first incarcerationa
< 20	6598	6.8
20–29	38,648	39.9
30–39	23,743	24.5
40–49	16,334	16.9
50–59	8316	8.6
60–69	2713	2.8
> 70	462	0.5
Genderb
Female	9962	10.3
Male	86,875	89.7
Number of incarcerations
1	66,350	68.5
2	15,746	16.3
3	6305	6.5
4	3257	3.4
5 +	5198	5.4
Total deathsc	8 053	100
Natural causes	4,093	50.8
Unnatural cause	3,425	42.5
Suicide	811	10.1
Unknown/no cause given	535	6.6

^a42 persons missing age information

^b19 persons missing gender information

^cNatural cause: ICD-10 chapters A-Q, unnatural cause: ICD-10 chapters V–Y