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Table 3 Association between four school performance indicators and school sociodemographic variables in middle school students

From: Association between attempted suicide and academic performance indicators among middle and high school students in Mexico: results from a national survey

  Two years older than expected for grade level Studying last year Perceived academic performance Number of failed courses
  (a) No a) Yes a) Very good a) None
  (b) Yes b) No b) Good b) 1
        c) Fair or poor c) 2
           d) 3 or more
  (n = 13,624) (n = 13,403) (n = 13,380) (n = 13,123)
OR 95% CI Sig. OR 95% CI Sig. OR 95% CI Sig. OR 95% CI Sig.
School performance variable
 (a) 1.00   1.00   1.00   1.00  
 (b) 0.83 (0.31–2.21)   2.75 (1.17–6.50) * 1.86 (1.16–2.99) * 1.18 (0.74–1.88)  
 (c)    2.35 (1.56–3.54) *** 1.12 (0.63–1.98)  
 (d)     2.41 (1.26–4.60) **
Sex
 Male 1.00   1.00   1.00   1.00  
 Female 5.79 (4.15–8.07) *** 5.74 (4.13–7.98) *** 6.45 (4.56–9.11) *** 6.05 (4.32–8.47) ***
 Age (continuous) 1.02 (0.75–1.39)   0.98 (0.78–1.23)   0.98 (0.77–1.23)   0.96 (0.76–1.22)  
Worked last year  
 No 1.00   1.00   1.00   1.00  
 Yes, part-time 2.49 (1.51–4.10) *** 2.34 (1.48–3.71) *** 2.41 (1.43–4.06) *** 2.50 (1.51–4.14) ***
 Yes, full-time 1.34 (0.71–2.51)   1.35 (0.71–2.57)   1.37 (0.72–2.59)   1.32 (0.69–2.52)  
Size of locality
 Big city 1.00   1.00   1.00   1.00  
 City 1.01 (0.72–1.42)   1.01 (0.72–1.42)   1.01 (0.71–1.42)   1.00 (0.71–1.41)  
 Small town or hamlet 0.80 (0.50–1.29)   0.78 (0.48–1.26)   0.82 (0.51–1.32)   0.79 (0.48–1.28)  
Family constellation
 Both parents 1.00   1.00   1.00   1.00  
 Both parents (one surrogate) 1.37 (0.90–2.09)   1.37 (0.90–2.08)   1.32 (0.86–2.03)   1.33 (0.87–2.03)  
 Mother (or surrogate) 1.12 (0.75–1.68)   1.09 (0.74–1.61)   1.11 (0.74–1.67)   1.09 (0.73–1.63)  
 Father (or surrogate) 2.42 (1.06–5.48) * 2.44 (1.07–5.58) * 2.50 (1.08–5.77) * 2.50 (1.08–5.79) *
 Other 1.88 (1.02–3.45) * 1.89 (1.02–3.48) * 1.93 (1.04–3.56) * 1.83 (0.95–3.51)  
Mother’s (or surrogate’s) education level
 Elementary or no education 1.00   1.00   1.00   1.00  
 Middle school 1.25 (0.84–1.86)   1.24 (0.82–1.86)   1.25 (0.84–1.85)   1.25 (0.84–1.86)  
 High school 1.37 (0.89–2.10)   1.38 (0.90–2.12)   1.41 (0.91–2.17)   1.35 (0.88–2.09)  
 University/college 1.57 (0.97–2.54)   1.57 (0.97–2.54)   1.70 (1.03–2.79) * 1.53 (0.94–2.49)  
 Postgraduate studies 1.50 (0.78–2.87)   1.53 (0.80–2.94)   1.62 (0.84–3.12)   1.52 (0.79–2.91)  
 Other 0.61 (0.33–1.13)   0.60 (0.32–1.11)   0.58 (0.30–1.10)   0.55 (0.29–1.06)  
School yeara
 First year (7th) 1.00   1.00   1.00   1.00  
 Second year (8th) 2.15 (1.25–3.70) ** 2.42 (1.47–3.96) *** 2.19 (1.36–3.52) ** 2.30 (1.41–3.74) ***
 Third year (9th) 2.03 (0.96–4.28)   2.38 (1.30–4.37) ** 2.04 (1.10–3.78) * 2.29 (1.23–4.28) **
  1. OR Odds Ratio, 95% CI 95% Confidence Interval
  2. * p  < 0.05; ** p < 0.01; *** p < 0.001
  3. a 7th, 8th and 9th grades as equivalents to the three grades of middle school in México