Table 1 Sample characteristics.
Maternal care | Maternal autonomy | Maternal control | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Low | Medium | High | Statistic | N | Low | Medium | High | Statistic | N | Low | Medium | High | Statistic | N | |
N | 81 | 178 | 142 | 401 | 86 | 159 | 169 | 414 | 104 | 183 | 126 | 413 | |||
PBI score range | 14–34 | 35–42 | 43–48 | 9–17 | 18–21 | 22–28 | 5–6 | 7–10 | 11–20 | ||||||
Parental Bonding Instrument – Mother questionnaire | |||||||||||||||
Care | 29.72 (4.23) | 38.89 (2.15) | 45.42 (1.76) | χ2(2) = 344.9, p <.001 | 401 | 34.75 (7.06) | 38.46 (5.05) | 42.58 (4.88) | χ2(2) = 95.7, p <.001 | 395 | 42.48 (5.25) | 39.32 (5.65) | 36.8 (6.72) | χ2(2) = 49.7, p <.001 | 393 |
Autonomy | 17.6 (3.63) | 20.18 (3.1) | 22.57 (3.09) | F(2,398) = 63.5, p <.001 | 401 | 15.35 (1.93) | 19.64 (1.05) | 24.09 (1.80) | χ2(2) = 360.3, p <.001 | 414 | 22.8 (3.24) | 20.44 (3.31) | 18.37 (3.55) | F(2,410) = 49.2, p <.001 | 413 |
Control | 10.85 (3.46) | 9.11 (2.97) | 8.05 (2.95) | χ2(2) = 37.9, p <.001 | 393 | 11.27 (3.58) | 9.52 (2.93) | 7.57 (2.51) | χ2(2) = 75.5, p <.001 | 402 | 5.41 (0.49) | 8.35 (1.06) | 13.19 (2.05) | χ2(2) = 361.9, p <.001 | 413 |
Participant demographics and relevant adulthood characteristics | |||||||||||||||
Gender (% female) | 49.38 | 42.7 | 52.11 | χ2(2) = 3, p =.226 | 452 | 60.47 | 40.88 | 50.89 | χ2(2) = 9, p =.011 | 452 | 45.19 | 43.17 | 57.94 | χ2(2) = 7, p =.030 | 452 |
Age | 70.09 (0.71) | 70.21 (0.72) | 70.09 (0.8) | F(2,398) = 1.2, p =.290 | 452 | 70.12 (0.69) | 70.18 (0.77) | 70.14 (0.74) | F(2,411) = 0.2, p =.822 | 452 | 70.11 (0.76) | 70.09 (0.77) | 70.26 (0.69) | F(2,410) = 2.3, p =.107 | 452 |
Townsend | − 0.60 (3.18) | −1.23 (2.73) | − 0.79 (2.71) | χ2(2) = 4.9, p =.088 | 391 | −1.08 (2.59) | −1.04 (2.78) | − 0.71 (2.79) | χ2(2) = 1.8, p =.414 | 403 | − 0.88 (2.29) | − 0.94 (2.91) | − 0.8 (3.12) | χ2(2) = 1.2, p =.539 | 402 |
APOE (% ϵ4 carrier) | 25.71 | 27.22 | 25 | χ2(2) = 0.2, p =.912 | 352 | 26.76 | 27.14 | 24.34 | χ2(2) = 0.3, p =.847 | 363 | 26.09 | 30.12 | 20.75 | χ2(2) = 2.9, p =.231 | 364 |
BMI | 27.7 (4.44) | 27.41 (4.54) | 27.97 (4.80) | χ2(2) = 1.6, p =.448 | 396 | 27.11 (4.78) | 28.12 (4.71) | 27.29 (4.32) | χ2(2) = 4.9, p =.088 | 409 | 26.94 (3.97) | 27.71 (4.47) | 28.01 (5.07) | χ2(2) = 2.3, p =.318 | 408 |
GM | 38.14 (1.59) | 38.46 (1.59) | 38.28 (1.95) | F(2,398) = 1.1, p =.340 | 401 | 38.52 (1.73) | 38.33 (1.59) | 38.31 (1.93) | F(2,411) = 0.5, p =.633 | 414 | 38.30 (1.82) | 38.25 (1.73) | 38.42 (1.68) | F(2,410) = 0.4, p =.701 | 413 |
WM | 36.67 (1.51) | 36.76 (1.41) | 36.68 (1.46) | F(2,398) = 0.2, p =.849 | 401 | 36.52 (1.60) | 36.72 (1.36) | 36.82 (1.45) | F(2,411) = 1.3, p =.280 | 414 | 36.71 (1.43) | 36.84 (1.41) | 36.59 (1.53) | F(2,410) = 1.2, p =.316 | 413 |
CSF | 25.19 (2.15) | 24.78 (2.15) | 25.04 (2.55) | F(2,398) = 1.1, p =.347 | 401 | 24.96 (2.44) | 24.94 (2.07) | 24.87 (2.56) | F(2,411) = 0.1, p =.941 | 414 | 24.98 (2.46) | 24.91 (2.37) | 24.99 (2.23) | F(2,410) = 0.1, p =.942 | 413 |
Early life factors | |||||||||||||||
Birthweight (kg) | 3.35 (0.48) | 3.45 (0.47) | 3.46 (0.52) | F(2,397) = 1.5, p =.235 | 400 | 3.38 (0.51) | 3.43 (0.52) | 3.46 (0.45) | F(2,410) = 0.7, p =.494 | 413 | 3.44 (0.42) | 3.48 (0.48) | 3.34 (0.53) | χ2(2) = 5.1, p =.077 | 412 |
Pubertal growth | − 0.06 (0.22) | − 0.04 (0.26) | − 0.003(0.26) | F(2,398) = 1.6, p =.205 | 401 | − 0.08 (0.21) | − 0.03 (0.27) | − 0.02 (0.25) | F(2,411) = 1.4, p =.237 | 414 | − 0.06 (0.26) | − 0.01 (0.26) | − 0.06 (0.24) | F(2,410) = 2.1, p =.125 | 413 |
Social class of father | 56.06 | 65.43 | 63.2 | χ2(2) = 1.8, p =.412 | 353 | 57.89 | 63.24 | 64.43 | χ2(2) = 0.9, p =.620 | 361 | 60.67 | 64.02 | 60.55 | χ2(2) = 0.4, p =.800 | 362 |
Social class at 22yo | 98.68 | 91.98 | 92.54 | χ2(2) = 4.2, p =.122 | 372 | 97.47 | 91.84 | 93.04 | χ2(2) = 2.8, p =.251 | 384 | 92.93 | 94.05 | 93.91 | χ2(2) = 0.1, p =.931 | 382 |
Mental Health | |||||||||||||||
Well-being | 52.65 (7.4) | 55.45 (7.15) | 56.21 (7.21) | F(2,381) = 6.3, p =.002 | 384 | 53.41 (6.84) | 54.57 (7.65) | 56.6 (6.87) | F(2,393) = 6.2, p =.002 | 396 | 57.46 (7.21) | 54.85 (7.15) | 53.69 (7.03) | F(2,392) = 7.9, p <.001 | 395 |
Cognition | |||||||||||||||
MMSE | 29.31 (0.77) [27–30] | 29.26 (1.09) [22–30] | 29.25 (0.99) [23–30] | χ2(2) = 0.3, p =.853 | 401 | 29.43 (0.68) [27–30] | 29.12 (1.22) [22–30] | 29.33 (0.86) [26–30] | χ2(2) = 2.8, p =.243 | 414 | 29.12 (1.11) [23–30] | 29.23 (1.04) [22–30] | 29.41 (0.85) [25–30] | χ2(2) = 5.1, p =.077 | 413 |
Word-list memory test | 24.05 (5.29) | 23.9 (5.96) | 23.57 (5.94) | F(2,389) = 0.2, p =.818 | 392 | 24.32 (5.94) | 23.42 (5.86) | 23.88 (5.68) | F(2,402) = 0.7, p =.503 | 405 | 23.82 (6.47) | 23.82 (5.49) | 23.99 (5.58) | F(2,401) = 0.04, p =.962 | 404 |