Table 1.

Demographic and anthropometric characteristics of OI patients.

			All patients (n = 568)
OI type	Unknown	n %	166	29.2%
	I	n %	310	54.6%
	III	n %	31	5.5%
	IV	n %	59	10.4%
	V	n %	2	0.4%
Gender	Male	n %	264	46.5%
Age	Years	Mean SD	22.2	18.1
	0–1	n %	63	11.1%
	2–9	n %	135	23.8%
	10–17	n %	88	15.5%
	18–34	n %	134	23.6%
	35–50	n %	100	17.6%
	50–65	n %	35	6.2%
	65–75	n %	13	2.3%
Height a	z-score	Mean SD	−1.50	2.21
	Percentile	Mean SD	25.5	29.9
Weight b	z-score	Mean SD	−0.63	1.76
	Percentile	Mean SD	38.9	33.3
BMI c	z-score	Mean SD	0.18	1.49
	Percentile	Mean SD	55.6	33.6
	Very underweight	n %	10	2.3%
	Underweight	n %	54	9.5%
	Normal weight	n %	261	46.0%
	Overweight	n %	72	12.7%
	Obese	n %	46	8.1%

SD, standard deviation.

^aData were missing for 79 patients (13.9%).

^bData were missing for 120 patients (21.1%).

^cData were missing for 125 patients (22%).