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Table 1 Demographic Characteristics of Subjects with Reported SI vs. Subjects with No Reported SI

From: Suicidality in individuals with Prader-Willi syndrome: a review of registry survey data

  Reported SI No Reported SI Total Count Pearson’s X2 (df), p-value Cramer’s V
Count (%) Count (%) Count (%)
Age Group (years) 3 to 5 0 (0) 7 (1.1) 7 (0.9) 49.790 (4), < 0.001  
6 to 12 6 (6.4) 215 (32.8) 221 (29.5)  
13 to 17 15 (16) 167 (25.5) 182 (24.3) 0.258
18 to21 16 (17) 74 (11.3) 90 (12)  
22 and older 57 (60.6) 193 (29.4) 250 (33.3)  
Sex Female 38 (40.4) 347 (52.9) 385 (51.3) 5.118 (1), 0.024 0.083
Male 56 (59.6) 309 (47.1) 365 (48.7)
Race White 81 (86.2) 555 (84.6) 636 (84.8) 2.307 (5), NS 0.055
Multi-race 5 (5.3) 46 (7) 51 (6.8)
Black 3 (3.2) 13 (2) 16 (2.1)
Asian 1 (1.1) 17 (2.6) 18 (2.4)
Native or Pacific Islander 1 (1.1) 3 (0.5) 4 (0.5)
Unknown 3 (3.2) 22 (3.4) 25 (3.3)
Ethnicity Non-Hispanic 68 (72.3) 454 (69.2) 522 (69.6) 0.435 (2), NS 0.024
Hispanic 5 (5.3) 43 (6.6) 48 (6.4)
Unknown 21 (22.3) 159 (24.2) 180 (24)
Genetic Subtype Deletion 47 (50) 320 (48.8) 367 (48.9) 2.700 (2), NS  
Uniparental disomy 25 (26.6) 220 (33.5) 245 (32.7) 0.066
Other/Unknown 22 (23.4) 116 (17.7) 138 (18.4)  
  1. No Reported SI includes either “No” or “Don’t Know” responses; it does not include subjects who did not respond
  2. Bold cells are those significant by post hoc test. NS: p-value greater than 0.05. Age is age of survey subject as of data collection, 12/17/2020. Unknown includes both “Don’t know” and no provided answer. Cramer’s V: Measure of Association (Effect size ranging 0 to 1)