Table 3.

Characteristics of 16 children with hypocalcemic complications

Patient	Age at index date (mo)	Year of complication (before or after 1/1/2000)	Diagnoses	Total calcium (8.8–10.8 mg/dL)	Ionized calcium (3.7–5.5 mg/dL)	25(OH)D(20–50 ng/mL)
1	0–3	after	seizures		2.0
2	0–3	after	seizures	8.0
3	0–3	after	seizures	6.9
4	0–3	after	seizures, cardiac arrest		1.61
5	0–3	before	cardiac arrest		3.48
6	3–6	after	seizures, cardiomyopathy, cardiac arrest		3.3
7	3–6	after	respiratory arrest, tetany	6.8	2.0	4.0
8	6–9	after	seizures, cardiac arrest, respiratory arrest	4.8	2.7	6.0
9	12–15	after	cardiac arrest, respiratory arrest		2.6
10	12–15	after	cardiac arrest		3.4
11	15–18	after	seizures	7.8	3.69	51.0
12	18–21	after	seizures	8.4
13	24–27	before	seizures	8.7
14	24–27	after	seizures	8.4
15	27–30	after	seizures	8.3
16	48–51	after	seizures, cardiac arrest	7.1	3.0

Patient	Alkaline phosphatase (83–248 U/L at 0–14 d, 122–469 U/L at 15 d-<1 yr, 142–335 U/L at 1–10 yr)	Rickets present on x-ray	Length/height percentile	Weight percentile	Diet during infancy before index date
1			0–5	0–5	breast milk and formula
2			75–80	60–65	breast milk
3			0–5	15–20	breast milk and formula
4	134		0–5	0–5	breast milk and formula
5				0–5	breast milk
6	418	No	0–5	10–15	breast milk and formula
7	2122	Yes	30–35	50–55	breast milk
8	723	Yes	30–35	0–5	breast milk
9				80–85	breast milk
10		No		75–80	breast milk and formula
11			55–60	60–65	formula
12	425		10–15	10–15	formula
13	452
14			10–15	0–5	breast milk and formula
15				95–100	breast milk and formula
16	502				breast milk and formula

Laboratory reference ranges are shown in parentheses for biochemical values. Blank cells indicate that data were not available.