Table 1.

Clinical Characteristics of Subjects With Down Syndrome

Pt. No.	Sex	Age	Age (y)	BCA (%)	Cause of Death
Age <5 y
1	Male	Newborn	0.00	1.57	Fetal distress
2	Female	4 d	0.01	5.02	Aspiration pneumonia
3	Female	12 d	0.03	3.33	Congenital heart disease
4	Female	3 mo	0.25	1.49	Congenital heart disease
5	Male	4 mo	0.33	1.93	Congenital heart disease
6	Male	4 mo	0.33	1.93	Congenital heart disease
7	Female	4 mo	0.33	1.10	Congenital heart disease
8	Female	5 mo	0.42	1.70	Congenital heart disease
9	Female	6 mo	0.50	3.24	Congenital heart disease
10	Female	7 mo	0.58	5.56	Congenital heart disease
11	Female	9 mo	0.75	2.07	Congenital heart disease
12	Female	9 mo	0.75	2.38	Congenital heart disease
13	Female	17 mo	1.42	3.43	Congenital heart disease
14	Male	22 mo	1.83	2.16	Chronic bronchiolitis
Mean			0.54	2.64
SEM			0.14	0.36
Age 5–15 y		NA
1	Male		10	2.48	Congenital heart disease
2	Female		5	1.07	Congenital heart disease
3	Male		9	1.86	Congenital heart disease
4	Male		9	2.68	Congenital heart disease
5	Male		13	2.00	Respiratory insufficiency
Mean			9.20	2.02
SEM			1.28	0.28
>15 y		NA
1	Female		19	1.53	Congenital heart disease
2	Female		33	1.22	Congenital heart disease
3	Male		34	2.29	Right ventricular hypertrophy
4	Male		38	3.61	Congenital heart disease
5	Female		47	0.79	Respiratory failure
6	Female		48	1.14	Bronchopneumonia
7	Female		56	1.39	Hemorrhage
8	Male		57	2.70	Bronchopneumonia
9	Male		62	0.96	Bronchopneumonia
10	Female		62	0.88	Bronchopneumonia
Mean			45.60	1.65
SEM			4.52	0.29

Abbreviations: BCA, beta cell area; NA, not applicable; Pt. No., patient number; SEM, standard error of the mean.