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Table 1 Prevalence Estimates of NSSI in Adolescents by Year of Publication

From: International prevalence of adolescent non-suicidal self-injury and deliberate self-harm

Study N-size Age Range M (SD)* Assessmenta Lifetime Prevalence % 12-Month Prevalence % 6-Month Prevalence % Country
Csorba et al. (2005) [25] 470 14-18 Ottawa Self-Injury Inventory 5.5    Hungary
Laye-Gindhu & SchonertReichl (2005) [26] 424 15.34 (1.06) Single Itemb - Yes/No 13.2    Canada
Izutsu et al. (2006) [27] 477 14.2 Single Item - Yes/No 8.4    Japan
Muehlenkamp & Gutierrez (2007) [28] 540 15.53 (1.42) SHBQ 23.2    USA
Lloyd-Richardson et al. (2007) [29] 633 15.5 (1.18) FASM 28    USA
Yates et al. (2008) [30] 1,036 Grade 9-12 FASM   37.2   USA
Matsumoto et al. (2008) [31] 1,726 14.5 (1.4) Single Item - Yes/No 9.6    Japan
Hilt et al. (2008) [32] 508 Grade 6-8 Single Item - Yes/No   7.5   USA
Nixon et al (2008) [33] 568 14-21 Single Item - Yes/No 16.9    Canada
Plener et al. (2009) [19] 665 14.8 (0.66) SHBQ 25.6    Germany
Laukkanen et al. (2009) [34] 4,205 13-18 Single Item - Yes/No 11.5    Finland
Muehlenkamp et al. (2009) [22] 1,393 15.48 (1.38) SHBQ 21.4    USA
Lam et al. (2009) [35] 1,618 13-18 Behavior Check List    16.3 China
Ross et al. (2009) [36] 440 15.39 (1.07) Single Item - interview 13.9    Canada
Brausch & Gutierrez (2010) [37] 373 15.04 (1.05) SHBQ 21.2    USA
Martin et al. (2010) [38] 1203 15-19yr Single Item - Yes/No 14.1    Australia
Hasking et al. (2010) [39] 393 13-18 Behavior Check List   33.3   Australia
Claes et al. (2010) [40] 150 15.56 (2.00) Self-Harm Inventory (SHI) 30.7    Belgium
Hankin & Abela (2010) [41] 97 13-16 FASM   18   USA
Hay & Meldrum (2010) [42] 426 15 (2.8) Single Item - 4 point scale 17.7    USA
Prinstein et al. (2010) [43] 377 Grade 6-8 Single Item - 6 point scale   7.4   USA
Baetens et al. (2011a) [44] 1,417 15.13 (1.76) Single Item - Yes/No 13.71    Belgium
Baetens et al. (2011b) [45] 251 16.41 (1.26) Self-Harm Inventory (SHI) 29.9    Belgium
You et al. (2011a) [46] 2,435 14.63 (1.25) 12 NSSI behaviors   24.9 13.9 China
Taliaferro et al. (in press) [10] 61,767 Grade 9 & 12 Single Item - Yes/No   7.3   USA
You et al. (2011b) [47] 6,374 14.72 (1.94) 5 NSSI Behaviors 15    China
Mohl & Skandsen (2011) [48] 2,864 High school Single-Item - Yes/No 21.5 16.2   Denmark
  1. Note: * Standard Deviations and mean ages were not always reported within sample descriptions. a SHBQ = Self-Harm Behavior Questionnaire, FASM = Functional Assessment of Self-Mutilation; b The most common single item wording was: "Have you ever intentionally hurt yourself on purpose (e.g, cut, burn) without wanting to die" or "Have you every hurt yourself on purpose without suicidal intent?"