Skip to main content

Table 2 Association of ever having self-harmed at age 16 with key demographic variables 1,2

From: Adolescent self-harm and suicidal thoughts in the ALSPAC cohort: a self-report survey in England

   Ever self-harmed3
   N (%) OR [95% CI] p-value
Gender Males 180 (9.1%) 1.00 ref <0.001
  Females 725 (25.6%) 3.42 [2.87, 4.07]  
Mother’s social class3 Prof/managerial 339 (18.4%) 1.00 ref 0.004
  Intermediate 323 (17.2%) 0.92 [0.77, 1.08]  
  Manual 91 (24.8%) 1.46 [1.12, 1.90]  
Mother’s highest educational qualification A level/degree 400 (17.7%) 1.00 ref 0.114
  O-level 317 (20.4%) 1.19 [1.01, 1.40]  
  < O-level 162 (18.5%) 1.06 [0.86, 1.29]  
Ethnicity White 865 (18.9%) 1.00 ref 0.225
  Non-white 30 (15.5%) 0.79 [0.53, 1.17]  
GCSE/GNVQs at grades A*-C4 5 or more 613 (18.3%) 1.00 ref 0.027
  Less than 5 171 (21.8%) 1.20 [1.03, 1.34]  
SMFQ score aged 16 Less than 11 512 (13.2%) 1.00 ref <0.001
  11 or more 379 (45.3%) 5.43 [4.60, 6.40]  
Mother’s EPDS score when child aged 11 Less than 13 655 (17.6%) 1.00 ref 0.001
  13 or more 109 (21.0%) 1.48 [1.17, 1.86]  
  1. Notes
  2. 1. Logistic regression based on available data (n < = 4810).
  3. 2. Number of respondents with missing data was 0 for gender, 735 for mother’s class, 128 for mother’s highest educational qualification, 29 for ethnicity, 679 for own educational qualifications, 116 for SMFQ score, and 646 for mother’s EPDS score.
  4. 3. Non-respondents to “have you ever hurt yourself on purpose?” = 45.
  5. 4. Where the more A*-C grades obtained the better.