Young et al. BMC Public Health 2011, 11:874 http://www.biomedcentral.com/1471-2458/11/874 Page 11 of 15 Table 5 School and individual effects on deliberate self-harm at age 19, unadjusted and fully adjusted models Predictor Self-harm Unadjusted OR p Self-harm Adjusted OR Prior mental health risk Age 11-Depression 1.06 (0.99-1.14) 0.073 1.04 (0.96-1.13) Age 11-Psych service (no) Yes 1.16 (0.27-5.05) 0.840 0.99 (0.20-4.85) Missing 0.70 (0.25-1.99) 0.507 3.83 (0.26-55.93) Age 11-Victimised (never) Less often 1.92 (1.11-3.33) 0.020 1.61 (0.88-2.95) Weekly 1.80 (0.88-3.68) 0.107 1.34 (0.58-3.06) Social background Gender (male) Female 1.56 (0.94-2.59) 0.082 1.54 (0.87-2.73) Relative age (older than peers) 1.04 (0.97-1.11) 0.307 1.04 (0.96-1.12) Social Class (I) II 1.61 (0.32-8.01) 0.561 0.51 (0.20-1.31) IIIn 1.02 (0.23-4.61) 0.977 0.59 (0.19-1.80) IIIm 1.47 (0.31-6.98) 0.628 0.20 (0.06-0.64) IV 0.52 (0.11-2.54) 0.422 0.49 (0.15-1.64) V 1.36 (0.28-6.53) 0.701 1.74 (0.49-6.22) Missing 3.67 (0.74-18.26) 0.112 0.49 (0.07-3.62) Deprivation 1.00 (0.88-1.14) 0.970 0.97 (0.80-1.18) Religion (Protestant) Catholic 0.61 (0.32-1.15) 0.128 0.07 (0.01-0.31) Other 1.57 (0.69-3.57) 0.288 1.18 (0.47-2.96) None 1.08 (0.53-2.23) 0.825 1.00 (0.46-2.17) Missing 0.44 (0.13-1.48) 0.186 0.03 (0.00-0.65) Family (2-parent) Other 2.50 (1.27-4.94) 0.008 2.72 (1.23-5.99) 1-Parent 1.40 (0.68-2.85) 0.358 1.28 (0.57-2.88) Parental control 1.22 (1.05-1.42) 0.008 1.12 (0.93-1.35) Parental care 0.78 (0.67-0.90) 0.001 0.92 (0.76-1.12) School connectedness Age 11-engagement 1.09 (0.81-1.47) 0.580 1.18 (0.84-1.65) Environment (poorer) 1.05 (0.99-1.12) 0.074 1.03 (0.95-1.12) Involvement (poorer) 1.17 (1.03-1.32) 0.012 1.01 (0.84-1.22) (Dis)engagement (poorer) 1.21 (1.07-1.38) 0.003 1.16 (0.97-1.39) T/P relations (poorer) 1.23 (0.98-1.56) 0.080 0.92 (0.67-1.28) Neighbourhood perception Neigh’d cohesion (poorer) 1.25 (0.98-1.59) 0.077 1.06 (0.80-1.41) Neigh’d safety/civility (poorer) 1.04 (0.82-1.34) 0.729 0.88 (0.65-1.19) Neigh’d facilities (poorer) 1.06 (0.83-1.36) 0.632 1.05 (0.79-1.39) School level variables Overall (avg) ethos 1.45 (1.04-2.03) 0.029 1.31 (0.85-2.01) School roll (quintiles) 1.10 (0.92-1.31) 0.281 1.05 (0.84-1.30) School rating 0.82 (0.47-1.44) 0.496 0.96 (0.50-1.82) Denomination 0.81 (0.47-1.40) 0.457 9.15 (2.17-38.53) Cross-level interaction Mismatch between religion and school denomination 4.12 (1.32-12.89) 0.015 - p 0.288 0.995 0.326 0.119 0.493 0.141 0.315 0.160 0.354 0.007 0.249 0.393 0.484 0.786 0.001 0.724 0.994 0.026 0.013 0.554 0.217 0.413 0.346 0.469 0.892 0.113 0.634 0.680 0.400 0.741 0.221 0.671 0.896 0.003 - Significant odds ratios are emboldened