Excess Mortality in an Inception Cohort of Childhood Diabetes Diagnosed 1990–2010

Table 3

Standardized mortality ratios by age attained and early (<8 years) and late (8–15 years) age at diagnosis for childhood-onset type 1 diabetes compared to the general population.

Attained age (years)	Age at diagnosis	Person-years	Crude rate per 100,000	Expected mortality rate per 100,000 (2015 Aus)	SMR (95% CI) indirect
10–19	Early	20,685	48.34	21.63	2.24 (1.21, 4.16)
10–19	Late	25,179	63.55	21.63	2.94 (1.80, 4.80)
10–19	Total	45,864	56.69	21.63	2.62 (1.78, 3.85)
20–29	Early	12,695	165.42	44.22	3.74 (2.44, 5.74)
20–29	Late	29,957	160.23	44.22	3.62 (2.73, 4.80)
20–29	Total	42,653	161.77	44.22	3.66 (2.89, 4.63)
30–39	Early	2,731	109.84	76.05	1.44 (0.46, 4.46)
30–39	Late	13,961	329.49	76.05	4.33 (3.24, 5.78)
30–39	Total	16,692	293.55	76.05	3.86 (2.92, 3.97)
Total	Early	36,111	94.15	75.70	1.94 (1.39, 2.72)
Total	Late	69,097	159.20	75.70	3.29 (2.73, 3.97)
Total	Total	105,209	136.87	75.70	2.83 (2.40, 3.33)