Table 2.

Percentage of participants with self-harming behavior.

During the past year, did you ever intentionally any of the following	No		Yes
	Number	Percent	Number	Percent
(1) Cut your wrist, arms, or other area(s) of your body?	3042	91.7%	277	8.3%
(2) Burned yourself with a cigarette?	3297	99.2%	26	0.8%
(3) Burned yourself with a lighter or a match?	3274	98.7%	42	1.3%
(4) Carved words into your skin?	3153	95.1%	161	4.9%
(5) Carved pictures, designs, or other marks into your skin?	3135	94.9%	169	5.1%
(6) Severely scratched yourself, to the extent that scarring or bleeding occurred?	2956	89.6%	343	10.4%
(7) Bit yourself, to the extent that you broke the skin?	3045	92.6%	244	7.4%
(8) Rubbed sandpaper on your body?	3263	99.1%	30	0.9%
(9) Dripped acid onto your skin?	3279	99.7%	10	0.3%
(10) Used bleach, comet, or oven cleaner to scrub your skin?	3259	99.5%	16	0.5%
(11) Stuck sharp objects such as needles, pins, and staples, into your skin (not including tattoos, ear piercing, needles used for drug use, or body piercing)?	3158	96.8%	103	3.2%
(12) Rubbed glass into your skin?	3178	98.4%	52	1.6%
(13) Broken your own bones?	3203	99.4%	20	0.6%
(14) Banged your head against something, to the extent that you caused a bruise to appear?	3060	95.7%	138	4.3%
(15) Punched yourself, to the extent that you caused a bruise to appear?	2992	94.2%	184	5.8%
(16) Prevented wounds from healing?	2876	91.4%	272	8.6%
(17) Done anything else to hurt yourself that was not asked about in this questionnaire?	2986	95.3%	148	4.7%
Participants who had shown any of the above self-harm behaviors	2241	67.3%	1087	32.7%