Table 2. HR (95% CI) for the relation of IQ with assault by any means.
| IQ score1 | N (assault / no assault) | Adjusted for age | Adjusted for age and childhood circumstances2 | Adjusted for age and adult SES | Multiple adjustment excluding education 3 | Multiple adjustment including education 4 |
|---|---|---|---|---|---|---|
| 9 | 214 / 49,817 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 8 | 549 / 90,976 | 1.39 (1.19, 1.63) | 1.37 (1.17, 1.60) | 1.39 (1.19, 1.63) | 1.35 (1.16, 1.59) | 1.21 (1.03, 1.42) |
| 7 | 1,159 / 146,997 | 1.81 (1.56, 2.09) | 1.76 (1.52, 2.03) | 1.78 (1.54, 2.06) | 1.69 (1.46, 1.96) | 1.36 (1.17, 1.57) |
| 6 | 2,089 / 194,250 | 2.47 (2.14, 2.84) | 2.36 (2.05, 2.72) | 2.36 (2.05, 2.72) | 2.20 (1.91, 2.54) | 1.59 (1.38, 1.84) |
| 5 | 3,571 / 248,484 | 3.46 (3.02, 3.97) | 3.25 (2.83, 3.74) | 3.17 (2.76, 3.64) | 2.82 (2.45, 3.24) | 1.86 (1.61, 2.14) |
| 4 | 3,041 / 161,211 | 4.24 (3.69, 4.87) | 3.94 (3.42, 4.53) | 3.85 (3.35, 4.43) | 3.49 (3.03, 4.02) | 2.14 (1.86, 2.48) |
| 3 | 2,607 / 110,568 | 5.33 (4.63, 6.12) | 4.90 (4.26, 5.64) | 4.71 (4.09, 5.42) | 4.21 (3.65, 4.85) | 2.49 (2.15, 2.87) |
| 2 | 2,138 / 71,328 | 6.79 (5.90, 7.81) | 6.18 (5.36, 7.13) | 5.77 (5.01, 6.65) | 5.11 (4.43, 5.89) | 2.92 (2.52, 3.38) |
| 1 | 1,144 / 30,845 | 8.15 (7.04, 9.43) | 7.34 (6.33, 8.51) | 6.61 (5.71, 7.66) | 5.94 (5.12, 6.89) | 3.30 (2.83, 3.84) |
| P 5 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | |
| SD decrease | 16,512 / 1,104,476 | 1.63 (1.61, 1.66) | 1.59 (1.57, 1.62) | 1.55 (1.52, 1.57) | 1.51 (1.49, 1.54) | 1.33 (1.31, 1.36) |
| P | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
1
IQ scores are listed from high (9) to low (1)
2
Childhood SES and adult height
3
Adjusted for age, conscription centre, year of birth, childhood SES, adult height, and adult SES
4
Adjusted for age, conscription centre, year of birth, childhood SES, adult height, adult SES, and educational achievement
5
p for trend across 9 categories of IQ