Background
Method
Design and setting
Measures
Conduct problems and antisocial behaviours
Socio-demographic factors
Putative risk factors
Analysis
Sensitivity analyses
Missing data
Results
Participants
Conduct problems | * Fighting and Bullying | *Rule-breaking | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Low risk | High risk | Missing | χ2 | No | Perhaps/Definitely | Missing | χ2 | No | Perhaps/Definitely | Missing | χ2 | |
n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | ||||
Total Sample (4353) | 3572 (82) | 710 (16) | 71 (2) | 2186 (62) | 1132 (32) | 217 (6) | 2036 (58) | 1240 (35) | 259 (7) | |||
Gender | 6.13, p = 0.013 | 0·10, p = 0·752 | 8·34, p = 0·004 | |||||||||
Boys | 1720 (80) | 378 (18) | 40 (2) | 1034 (60) | 542 (32) | 134 (8) | 925 (54) | 628 (37) | 157 (9) | |||
Girls | 1852 (84) | 332 (15) | 31 (1) | 1152 (63) | 590 (33) | 83 (5) | 1111 (61) | 612 (34) | 102 (6) | |||
Year group | 0.07, p = 0·968 | 3·04, p = 0·219 | 53·40, p < 0·001 | |||||||||
7 | 1308 (82) | 263 (17) | 22 (1) | 836 (63) | 398 (30) | 95 (7) | 842 (63) | 368 (28) | 119 (9) | |||
8 | 1163 (82) | 228 (16) | 30 (2) | 685 (60) | 372 (33) | 78 (7) | 642 (57) | 414 (36) | 79 (7) | |||
9 | 1101 (82) | 219 (16) | 19 (1) | 665 (62) | 362 (34) | 44 (4) | 552 (52) | 458 (43) | 61 (6) | |||
Ethnicity | 60.80, p < 0·001 | 54·51, p < 0·001 | 59·63, p < 0·001 | |||||||||
Black African | 907 (81) | 185 (17) | 21 (2) | 523 (56) | 335 (36) | 68 (7) | 515 (56) | 321 (35) | 90 (10) | |||
Black Caribbean | 540 (75) | 159 (22) | 20 (3) | 292 (58) | 166 (33) | 45 (9) | 254 (51) | 202 (40) | 47 (9) | |||
Indian, Pakistani, Bangladeshi | 165 (91) | 14 (8) | 2 (1) | 106 (69) | 39 (25) | 8 (5) | 115 (75) | 31 (20) | 7 (5) | |||
Latin American | 180 (83) | 35 (16) | 2 (1) | 75 (50) | 68 (45) | 8 (5) | 69 (46) | 62 (41) | 20 (13) | |||
Mixed white and black | 296 (78) | 81 (21) | 3 (1) | 191 (62) | 99 (32) | 18 (6) | 164 (53) | 125 (41) | 19 (6) | |||
Other black | 101 (80) | 25 (20) | 1 (1) | 57 (53) | 44 (41) | 6 (6) | 56 (52) | 44 (41) | 7 (7) | |||
Other mixed/multiple | 195 (82) | 39 (16) | 3 (1) | 129 (62) | 66 (32) | 14 (7) | 107 (51) | 90 (43) | 12 (6) | |||
Other White | 345 (84) | 59 (14) | 5 (1) | 195 (64) | 92 (30) | 16 (5) | 178 (59) | 107 (35) | 18 (6) | |||
Other/unknown | 245 (81) | 49 (16) | 9 (3) | 155 (63) | 71 (29) | 19 (8) | 149 (61) | 78 (32) | 18 (7) | |||
White British | 598 (90) | 64 (10) | 5 (1) | 463 (73) | 152 (24) | 15 (2) | 429 (68) | 180 (29) | 21 (3) | |||
Putative risk factors | ||||||||||||
Receives free school meals | ||||||||||||
yes | 762 (78) | 197 (20) | 17 (2) | 15.41, p < 0·001 | 391 (64) | 224 (36) | 42 (6) | 1·82, p = 0·177 | 354 (54) | 253 (39) | 50 (8) | 4·48, p = 0·034 |
No | 2629 (84) | 470 (15) | 38 (1) | 1672 (66) | 844 (34) | 150 (6) | 1566 (59) | 921 (35) | 179 (7) | |||
Experienced Racial Discrimination | ||||||||||||
yes | 805 (74) | 272 (25) | 4 (0) | 86.45, p < 0·001 | 432 (49) | 422 (48) | 32 (4) | 127·75, p < 0·001 | 418 (47) | 422 (48) | 46 (5) | 81·82, p < 0·001 |
No | 2484 (86) | 370 (13) | 31 (1) | 1651 (70) | 641 (27) | 58 (3) | 1532 (65) | 740 (31) | 78 (3) | |||
*Troublesome friends | 211.62, p < 0·001 | 276·17, p < 0·001 | 282·18, p < 0·001 | |||||||||
None | 956 (91) | 79 (8) | 14 (1) | 805 (77) | 204 (19) | 40 (4) | 796 (76) | 203 (19) | 50 (5) | |||
A few | 1613 (84) | 285 (15) | 12 (1) | 1219 (64) | 648 (34) | 43 (2) | 1088 (57) | 757 (40) | 65 (3) | |||
Many or all | 237 (60) | 151 (38) | 7 (2) | 122 (31) | 255 (64) | 18 (5) | 117 (30) | 250 (63) | 28 (7) | |||
*Parental Control | ||||||||||||
High | 1006 (80) | 240 (19) | 14 (1) | 26.01, p < 0·001 | 750 (60) | 466 (37) | 44 (3) | 22·69, p < 0·001 | 702 (56) | 495 (39) | 63 (5) | 14·90, p < 0·001 |
Low | 1261 (87) | 174 (12) | 10 (1) | 1002 (69) | 420 (29) | 23 (2) | 933 (65) | 481 (33) | 31 (2) | |||
*Parental Care | 52·10, p < 0·001 | 99·68, p < 0·001 | ||||||||||
High | 1253 (89) | 144 (10) | 15 (1) | 57.41, p < 0·001 | 1002 (71) | 374 (26) | 36 (3) | 978 (69) | 385 (27) | 49 (3) | ||
Low | 1016 (79) | 268 (21) | 10 (1) | 752 (58) | 511 (39) | 31 (2) | 660 (51) | 589 (46) | 45 (3) |
Conduct problems by ethnicity
Conduct problems | *Fighting/Bullying | *Rule-breaking | ||||
---|---|---|---|---|---|---|
Unadjusted RR (95%CI) | Adjusted RR (95%CI) | Unadjusted RR (95%CI) | Adjusted RR (95%CI) | Unadjusted RR (95%CI) | Adjusted RR (95%CI) | |
Ethnicity | ||||||
Black African | 0.99 (0.88–1.10) | 0.99 (0.85–1.14) | 1.10 (0.98–1.21) | 1.10 (0.99–1.21) | 0.98 (0.88–1.09) | 0.98 (0.88–1.09) |
Black Caribbean | 1.40 (1.18–1.50) | 1.39 (1.19–1.62) | 1.11 (0.96–1.27) | 1.10 (0.95–1.26) | 1.18 (1.03–1.34) | 1.16 (1.02–1.32) |
Indian/Pakistani/Bangladeshi | 0.53 (0.47–0.95) | 0.53 (0.31–0.87) | 0.89 (0.65–1.18) | 0.90 (0.67–1.19) | 0.61 (0.43–0.84) | 0.62 (0.44–0.86) |
Latin American | 0.95 (0.76–1.27) | 0.97 (0.68–1.35) | 1.33 (1.04–1.68) | 1.33 (1.03–1.67) | 1.25 (0.98–1.57) | 1.22 (0.96–1.54) |
Mixed white and black | 1.32 (1.07–1.51) | 1.29 (1.02–1.60) | 1.01 (0.83–1.22) | 1.00 (0.82–1.20) | 1.13 (0.95–1.34) | 1.13 (0.94–1.33) |
Other black | 1.24 (0.91–1.67) | 1.24 (0.81–1.81) | 1.29 (0.96–1.71) | 1.29 (0.95–1.71) | 1.21 (0.90–1.59) | 1.22 (0.91–1.61) |
Other mixed/multiple | 1.05 (0.85–1.36) | 1.05 (0.75–1.42) | 1.03 (0.81–1.29) | 1.03 (0.81–1.28) | 1.25 (1.02–1.52) | 1.25 (1.02–1.52) |
Other white | 0.87 (0.68–1.03) | 0.89 (0.68–1.14) | 0.91 (0.74–1.11) | 0.91 (0.74–1.11) | 0.98 (0.81–1.18) | 0.99 (0.82–1.19) |
Other/unknown | 1.02 (0.76–1.18) | 1.00 (0.74–1.31) | 0.91 (0.72–1.14) | 0.91 (0.72–1.13) | 0.90 (0.72–1.11) | 0.88 (0.70–1.09) |
White British | 0.64 (0.61–0.86) | 0.65 (0.51–0.82) | 0.70 (0.60–0.82) | 0.71 (0.60–0.83) | 0.79 (0.68–0.91) | 0.80 (0.69–0.91) |
Conduct problems by gender within ethnic groups
Conduct problems | *Fighting/Bullying | *Rule-breaking | ||||
---|---|---|---|---|---|---|
Unadjusted RR (95%CI) | Adjusted RR (95%CI) | Unadjusted RR (95%CI) | Adjusted RR (95%CI) | Unadjusted RR (95%CI) | Adjusted RR (95%CI) | |
Overall gender difference | ||||||
Girl | 0.83 (0.70–0.96) | 0.81 (0.67–0.95) | 1·02 (0·87–1·17) | 1·02 (0·84–1·19) | 0·89 (0·76–1·02) | 0·85 (0·71–1·00) |
Within ethnic group | ||||||
Black African | 0.98 (0.77–1.18) | 0.98 (0.77–1.18) | 0.97 (0.83–1.11) | 0.97 (0.82–1.13) | 0.98 (0.78–1.18) | 0.97 (0.76–1.19) |
Black Caribbean | 0.99 (0.82–1.16) | 1.01 (0.76–1.27) | 0.86 (0.65–1.07) | 0.87 (0.63–1.11) | 0.83 (0.64–1.02) | 0.80 (0.59–1.00) |
Indian/Pakistani/Bangladeshi | 1.31 (0.22–2.41) | 1.76 (− 0.10–3.61) | 0.93 (0.07–1.80) | 0.89 (0.10–1.68) | 0.78 (0.12–1.43) | 0.74 (0.03–1.45) |
Latin American | 0.37 (0.11–0.63) | 0.38 (0.12–0.64) | 1.16 (0.62–1.69) | 0.99 (0.52–1.45) | 1.01 (0.51–1.50) | 0.99 (0.52–1.45) |
Mixed white and black | 0.78 (0.54–1.02) | 0.78 (0.54–1.02) | 0.90 (0.55–1.26) | 0.89 (0.53–1.26) | 1.08 (0.81–1.36) | 1.13 (0.76–1.49) |
Other black | 0.71 (0.21–1.21) | 0.72 (0.23–1.21) | 0.98 (0.61–1.34) | 0.96 (0.58–1.33) | 0.88 (0.59–1.16) | 0.85 (0.50–1.20) |
Other mixed/multiple | 1.28 (0.62–1.95) | 1.23 (0.53–1.93) | 1.07 (0.60–1.54) | 1.05 (0.52–1.58) | 0.66 (0.47–0.86) | 0.58 (0.41–0.76) |
Other white | 0.40 (0.11–0.68) | 0.38 (0.10–0.65) | 1.30 (0.78–1.81) | 1.33 (0.81–1.85) | 0.97 (0.81–1.13) | 0.94 (0.74–1.15) |
Other/unknown | 0.94 (0.26–1.62) | 0.93 (0.27–1.58) | 0.98 (0.45–1.52) | 1.01 (0.42–1.59) | 0.85 (0.47–1.22) | 0.82 (0.39–1.24) |
White British | 0.80 (0.35–1.26) | 0.77 (0.27–1.26) | 1.02 (0.75–1.29) | 1.02 (0.76–1.28) | 0.70 (0.52–0.87) | 0.66 (0.46–0.86) |
Putative risk factors
Conduct problems | *Fighting/Bullying | *Rule-breaking | ||||
---|---|---|---|---|---|---|
Unadjusted RR (95%CI) | Adjusted RR (95%CI) | Unadjusted RR (95%CI) | Adjusted RR (95%CI) | Unadjusted RR (95%CI) | Adjusted RR (95%CI) | |
Receives free school meals | 1.35 (1.05–1.65) | 1.32 (1.01–1.63) | 1.09 (0.93–1.25) | 1.09 (0.89–1.30) | 1.12 (0.98–1.26) | 1.14 (0.95–1.33) |
Experienced Racial Discrimination | 1.88 (1.51–2.25) | 1.95 (1.59–2.31) | 1.70 (1.52–1.88) | 1.84 (1.59–2.08) | 1.50 (1.37–1.63) | 1.62 (1.44–1.80) |
*A few troublesome friends | 1.91 (1.57–2.26) | 1.82 (1.47–2.16) | 1.68 (1.40–1.96) | 1.82 (1.46–2.18) | 1.91 (1.67–2.14) | 2.09 (1.86–2.31) |
*Many or all troublesome friends | 4.81 (3.68–5.94) | 4.80 (3.75–5.85) | 3.13 (2.63–3.64) | 4.00 (3.24–4.76) | 3.13 (2.70–3.57) | 3.99 (3.29–4.69) |
*Parental High Control | 1.49 (1.23–1.75) | 1.48 (1.21–1.75) | 1.25 (1.12–1.38) | 1.26 (1.07–1.44) | 1.17 (1.03–1.30) | 1.21 (1.05–1.37) |
*Parental Low Care | 1.89 (1.52–2.26) | 1.99 (1.59–2.40) | 1.44 (1.27–1.60) | 1.52 (1.33–1.72) | 1.58 (1.41–1.76) | 1.69 (1.45–1.92) |
Putative risk factors by ethnicity
Receives free school meals | Experienced Racial Discrimination | *A few to many or all troublesome friend’s vs none | *Parental High Control | *Parental Low Care | |
---|---|---|---|---|---|
% (95%CI) | % (95%CI) | % (95%CI) | % (95%CI) | % (95%CI) | |
Overall prevalence in sample | 0.24 (0.17–0.30) | 0.28 (0.24–0.32) | 0.70 (0.66–0.74) | 0.47 (0.43–0.52) | 0.48 (0.45–0.50) |
Ethnicity | RR (95%CI) | RR (95%CI) | RR (95%CI) | RR (95%CI) | RR (95%CI) |
Black African | 1.04 (0.92–1.17) | 1.10 (0.98–1.24) | 1.03 (0.95–1.11) | 1.12 (1.02–1.22) | 1.06 (0.96–1.16) |
Black Caribbean | 1.12 (0.96–1.29) | 0.96 (0.80–1.13) | 1.10 (0.99–1.21) | 1.13 (1.00–1.28) | 1.00 (0.88–1.14) |
Indian/Pakistani/Bangladeshi | 0.82 (0.57–1.14) | 1.18 (0.88–1.55) | 0.95 (0.77–1.15) | 1.12 (0.89–1.39) | 0.89 (0.69–1.14) |
Latin American | 0.72 (0.51–0.99) | 0.98 (0.71–1.33) | 0.97 (0.79–1.17) | 1.27 (1.02–1.56) | 1.14 (0.91–1.42) |
Mixed white and black | 1.36 (1.13–1.62) | 1.00 (0.80–1.23) | 1.09 (0.96–1.24) | 0.97 (0.82–1.15) | 1.00 (0.84–1.17) |
Other black | 0.93 (0.62–1.35) | 0.96 (0.64–1.38) | 0.98 (0.77–1.23) | 1.05 (0.78–1.37) | 0.87 (0.63–1.16) |
Other mixed/multiple | 1.16 (0.90–1.48) | 1.36 (1.07–1.69) | 0.97 (0.82–1.15) | 0.92 (0.74–1.13) | 1.03 (0.84–1.25) |
Other white | 0.68 (0.53–0.87) | 0.79 (0.62–1.01) | 0.95 (0.82–1.09) | 0.86 (0.72–1.03) | 0.87 (0.72–1.03) |
Other/unknown | 1.19 (0.95–1.47) | 1.17 (0.93–1.45) | 0.97 (0.83–1.13) | 1.05 (0.87–1.25) | 1.05 (0.87–1.25) |
White British | 0.86 (0.72–1.01) | 0.60 (0.49–0.72) | 0.90 (0.82–1.00) | 0.65 (0.56–0.75) | 0.98 (0.87–1.09) |
Base model: age, gender, free school meals | Model 1: base model + racial discrimination | Model 2: model 1+ friends who get into trouble | Model 3: model 2 + high control | Model 4: model 3 + low perceived parental care | |
---|---|---|---|---|---|
RR (95%CI) | RR (95%CI) | RR (95%CI) | RR (95%CI) | RR (95%CI) | |
Conduct problems | |||||
Black African | 1.00 (0.84–1.17) | 0.98 (0.83–1.15) | 0.96 (0.81–1.13) | 0.95 (0.80–1.12) | 0.93 (0.78–1.10) |
Black Caribbean | 1.37 (1.12–1.64) | 1.35 (1.11–1.63) | 1.28 (1.04–1.55) | 1.25 (1.02–1.52) | 1.27 (1.03–1.54) |
Indian/Pakistani/Bangladeshi | 0.49 (0.25–0.85) | 0.45 (0.22–0.80) | 0.49 (0.26–0.86) | 0.50 (0.26–0.86) | 0.50 (0.26–0.86) |
Latin American | 1.07 (0.70–1.56) | 1.03 (0.67–1.53) | 1.04 (0.68–1.54) | 1.00 (0.64–1.49) | 0.96 (0.61–1.44) |
Mixed white and black | 1.25 (0.95–1.60) | 1.24 (0.95–1.59) | 1.21 (0.92–1.56) | 1.23 (0.94–1.58) | 1.23 (0.94–1.58) |
Other black | 1.33 (0.84–1.99) | 1.34 (0.85–2.01) | 1.36 (0.86–2.03) | 1.36 (0.86–2.03) | 1.42 (0.91–2.11) |
Other mixed/multiple | 1.01 (0.70–1.41) | 0.96 (0.65–1.35) | 0.97 (0.66–1.36) | 0.97 (0.66–1.36) | 0.94 (0.64–1.33) |
Other white | 0.86 (0.62–1.16) | 0.91 (0.66–1.22) | 0.92 (0.67–1.23) | 0.94 (0.68–1.25) | 0.98 (0.72–1.30) |
Other/unknown | 1.09 (0.79–1.46) | 1.05 (0.75–1.42) | 1.08 (0.78–1.46) | 1.06 (0.76–1.43) | 1.06 (0.76–1.43) |
White British | 0.65 (0.50–0.82) | 0.71 (0.56–0.90) | 0.77 (0.61–0.96) | 0.80 (0.64–1.00) | 0.81 (0.64–1.01) |
Fighting/Bullying | |||||
Black African | 1.10 (0.99–1.21) | 1.08 (0.97–1.20) | 1.06 (0.95–1.18) | 1.06 (0.95–1.18) | 1.05 (0.94–1.17) |
Black Caribbean | 1.10 (0.95–1.26) | 1.09 (0.94–1.25) | 1.03 (0.88–1.19) | 1.02 (0.88–1.18) | 1.02 (0.88–1.18) |
Indian/Pakistani/Bangladeshi | 0.90 (0.67–1.19) | 0.87 (0.64–1.16) | 0.91 (0.68–1.21) | 0.91 (0.68–1.21) | 0.92 (0.68–1.21) |
Latin American | 1.33 (1.03–1.67) | 1.31 (1.02–1.66) | 1.30 (1.01–1.65) | 1.29 (1.00–1.63) | 1.27 (0.98–1.61) |
Mixed white and black | 1.00 (0.82–1.20) | 0.99 (0.82–1.20) | 0.97 (0.80–1.18) | 0.97 (0.80–1.18) | 0.97 (0.80–1.18) |
Other black | 1.29 (0.95–1.71) | 1.30 (0.96–1.72) | 1.31 (0.97–1.73) | 1.31 (0.97–1.73) | 1.34 (0.99–1.76) |
Other mixed/multiple | 1.03 (0.81–1.28) | 0.98 (0.76–1.23) | 0.98 (0.77–1.24) | 0.98 (0.77–1.24) | 0.98 (0.77–1.24) |
Other white | 0.91 (0.74–1.11) | 0.95 (0.77–1.15) | 0.97 (0.79–1.18) | 0.98 (0.80–1.19) | 0.99 (0.81–1.20) |
Other/unknown | 0.91 (0.72–1.13) | 0.88 (0.69–1.10) | 0.91 (0.72–1.13) | 0.91 (0.72–1.13) | 0.90 (0.71–1.12) |
White British | 0.71 (0.60–0.83) | 0.76 (0.65–0.88) | 0.82 (0.70–0.94) | 0.83 (0.72–0.96) | 0.83 (0.72–0.96) |
Rule-breaking | |||||
Black African | 0.98 (0.88–1.09) | 0.97 (0.87–1.07) | 0.95 (0.86–1.06) | 0.95 (0.85–1.05) | 0.94 (0.84–1.05) |
Black Caribbean | 1.16 (1.02–1.32) | 1.16 (1.01–1.32) | 1.10 (0.96–1.26) | 1.09 (0.95–1.25) | 1.10 (0.96–1.26) |
Indian/Pakistani/Bangladeshi | 0.62 (0.44–0.86) | 0.59 (0.41–0.82) | 0.63 (0.44–0.86) | 0.63 (0.44–0.86) | 0.64 (0.45–0.88) |
Latin American | 1.22 (0.96–1.54) | 1.21 (0.95–1.53) | 1.21 (0.95–1.53) | 1.20 (0.93–1.51) | 1.18 (0.92–1.49) |
Mixed white and black | 1.13 (0.94–1.33) | 1.12 (0.94–1.33) | 1.09 (0.91–1.29) | 1.09 (0.91–1.29) | 1.09 (0.91–1.29) |
Other black | 1.22 (0.91–1.61) | 1.25 (0.93–1.64) | 1.26 (0.94–1.65) | 1.26 (0.94–1.65) | 1.26 (0.94–1.65) |
Other mixed/multiple | 1.25 (1.02–1.52) | 1.21 (0.98–1.47) | 1.22 (0.99–1.49) | 1.22 (0.99–1.49) | 1.22 (0.99–1.49) |
Other white | 0.99 (0.82–1.19) | 1.02 (0.84–1.22) | 1.04 (0.86–1.24) | 1.04 (0.86–1.24) | 1.07 (0.89–1.27) |
Other/unknown | 0.88 (0.70–1.09) | 0.86 (0.69–1.07) | 0.90 (0.72–1.11) | 0.89 (0.71–1.10) | 0.88 (0.70–1.08) |
White British | 0.80 (0.69–0.91) | 0.84 (0.73–0.96) | 0.89 (0.78–1.02) | 0.91 (0.79–1.03) | 0.91 (0.79–1.04) |