Table 6

 Mental and social health of working children and their comparison group

Working children n (%)Comparison group n (%)Age education adjusted* OR (95% CI) or β (SE)Fully adjusted* OR (95% CI) or β (SE)
OR, odds ratio; CI, confidence interval; SD, standard deviation; SE, standard error.
*OR (logistic regression) and β coefficient (linear regression) adjusted for age and years at school, or adjusted for age, years at school, education of father, education of mother, and occupation of father; except for loss in mental development.
†Loss = chronological age − mental age.
‡Adjusted only for years at school.
§Adjusted for years at school, education of father, education of mother, and occupation of father.
Scales
Anxiety score (in quartiles)
    ⩽820 (26.7)18 (38.3)1.00 (Reference)1.00 (Reference)
    8–1216 (21.3)9 (19.1)1.79 (0.52 to 6.14)1.75 (0.41 to 7.49)
    13–1720 (26.7)13 (27.7)1.32 (0.42 to 4.18)1.00 (0.23 to 4.40)
    ⩾1819 (25.3)7 (14.9)2.67 (1.02 to 10.63)0.76 (0.08 to 7.03)
    Mean (SD)12.9 (5.8)11.5 (5.5)β: 0.50 (1.15), p = 0.66β: −0.64 (1.19), p = 0.60
Hopelessness score (in quartiles)
    ⩽3.517 (25.0)12 (24.5)1.00 (Reference)1.00 (Reference)
    3.6–6.022 (32.4)17 (34.7)0.71 (0.23 to 2.13)0.38 (0.09 to 1.65)
    6.1–8.014 (20.6)14 (28.6)0.88 (0.23 to 3.41)0.56 (0.09 to 3.50)
    >8.015 (22.1)6 (12.2)0.53 (0.10 to 2.77)0.33 (0.05 to 2.48)
    Mean (SD)6.1 (3.0)5.6 (2.8)β: 0.06 (0.63), p = 0.91β: −0.06 (0.73), p = 0.93
Self-esteem score (in quartiles)
    ⩽1416 (23.5)7 (14.0)1.30 (0.32 to 5.38)1.18 (0.26 to 5.40)
    15–1715 (22.1)13 (26.0)0.60 (0.16 to 2.27)0.46 (0.10 to 2.15)
    18–2022 (32.4)14 (28.0)1.05 (0.28 to 3.92)1.01 (0.21 to 4.93)
    >2015 (22.1)16 (32.0)1.00 (Reference)1.00 (Reference)
    Mean (SD)17.5 (4.1)18.5 (3.9)β: 0.04 (0.85), p = 0.97β: 0.48 (0.88), p = 0.59
Child’s drawing
Richness (complexity) of drawing
    Low51 (68.0)24 (51.1)1.00 (Reference)1.00 (Reference)
    Average/high12 (16.0)13 (27.7)0.60 (0.25 to 1.42)0.98 (0.17 to 2.76)
Child drew himself inside house
    Yes41 (53.9)42 (77.8)1.00 (Reference)1.00 (Reference)
    No35 (46.1)12 (22.2)4.20 (1.61 to 10.99)4.50 (1.43 to 14.29)
General impression
    Negative55 (71.4)39 (67.2)1.00 (Reference)1.00 (Reference)
    Average/positive22 (28.6)19 (32.8)0.81 (0.35 to 1.85)0.58 (0.21 to 1.62)
Loss in mental development (years)†
    Mean (SD)8.0 (2.1)6.5 (2.1)B: 1.68 (0.37)‡, p = 0.001B: 1.72 (0.43)§, p = 0.001
Future dreams
Job when adult
    White collar8 (10.5)24 (40.7)1.00 (Reference)1.00 (Reference)
    Blue collar68 (89.5)35 (59.3)6.02 (2.11 to 17.20)4.53 (1.33 to 15.48)
Confidence in attaining job
    Not sure16 (21.3)26 (45.6)1.00 (Reference)1.00 (Reference)
    Sure59 (78.7)31 (54.4)3.85 (1.60 to 9.26)5.92 (2.06 to 16.95)
Expects to travel for work
    No46 (60.5)35 (61.4)1.00 (Reference)1.00 (Reference)
    Yes30 (39.5)22 (38.6)0.65 (0.28 to 1.53)0.94 (0.35 to 2.51)