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Section

Medical History.Family

Data summary

Baseline

Variable Stats / Values Freqs (% of Valid) Graph Missing
children [integer]
Mean (sd) : 2.1 (1.3)
min ≤ med ≤ max:
0 ≤ 2 ≤ 84
IQR (CV) : 2 (0.6)
44 distinct values 0 (0.0%)
siblings [integer]
Mean (sd) : 3.5 (1.8)
min ≤ med ≤ max:
0 ≤ 3 ≤ 70
IQR (CV) : 3 (0.5)
30 distinct values 530 (0.1%)
mother_still_alive [factor]
  1. Yes
  1. No
  1. Unknown
231446 ( 44.9% )
283119 ( 54.9% )
848 ( 0.2% )
0 (0.0%)
mother_current_age [integer]
Mean (sd) : 72.5 (8.6)
min ≤ med ≤ max:
43 ≤ 72 ≤ 110
IQR (CV) : 12 (0.1)
65 distinct values 288773 (56.0%)
mother_age_at_death [integer]
Mean (sd) : 68.6 (14.4)
min ≤ med ≤ max:
15 ≤ 71 ≤ 110
IQR (CV) : 19 (0.2)
94 distinct values 268495 (52.1%)
father_still_alive [factor]
  1. Yes
  1. No
  1. Unknown
155757 ( 30.2% )
358489 ( 69.6% )
1167 ( 0.2% )
0 (0.0%)
father_current_age [integer]
Mean (sd) : 72.8 (7.8)
min ≤ med ≤ max:
44 ≤ 73 ≤ 105
IQR (CV) : 11 (0.1)
62 distinct values 362545 (70.3%)
father_age_at_death [integer]
Mean (sd) : 67.6 (13)
min ≤ med ≤ max:
15 ≤ 70 ≤ 110
IQR (CV) : 17 (0.2)
94 distinct values 210385 (40.8%)
mother_stroke [factor]
  1. No
  1. Yes
472182 ( 91.8% )
42383 ( 8.2% )
848 (0.2%)
mother_heart_attack [factor]
  1. No
  1. Yes
507653 ( 98.7% )
6912 ( 1.3% )
848 (0.2%)
mother_diabetes [factor]
  1. No
  1. Yes
497373 ( 96.7% )
17192 ( 3.3% )
848 (0.2%)
mother_mental_disorder [factor]
  1. No
  1. Yes
510781 ( 99.3% )
3784 ( 0.7% )
848 (0.2%)
mother_cancer [factor]
  1. No
  1. Yes
484355 ( 94.1% )
30210 ( 5.9% )
848 (0.2%)
father_stroke [factor]
  1. No
  1. Yes
465204 ( 90.5% )
49042 ( 9.5% )
1167 (0.2%)
father_heart_attack [factor]
  1. No
  1. Yes
506266 ( 98.4% )
7980 ( 1.6% )
1167 (0.2%)
father_diabetes [factor]
  1. No
  1. Yes
505211 ( 98.2% )
9035 ( 1.8% )
1167 (0.2%)
father_mental_disorder [factor]
  1. No
  1. Yes
511972 ( 99.6% )
2274 ( 0.4% )
1167 (0.2%)
father_cancer [factor]
  1. No
  1. Yes
466970 ( 90.8% )
47276 ( 9.2% )
1167 (0.2%)
siblings_stroke [integer]
Mean (sd) : 0 (0.2)
min ≤ med ≤ max:
0 ≤ 0 ≤ 9
IQR (CV) : 0 (6.2)
0 : 484840 ( 97.0% )
1 : 13060 ( 2.6% )
2 : 1478 ( 0.3% )
3 : 229 ( 0.0% )
4 : 51 ( 0.0% )
5 : 8 ( 0.0% )
6 : 4 ( 0.0% )
7 : 5 ( 0.0% )
9 : 4 ( 0.0% )
15734 (3.1%)
siblings_heart_attack [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 4
IQR (CV) : 0 (13.6)
0 : 496827 ( 99.4% )
1 : 2701 ( 0.5% )
2 : 136 ( 0.0% )
3 : 13 ( 0.0% )
4 : 2 ( 0.0% )
15734 (3.1%)
siblings_diabetes [integer]
Mean (sd) : 0 (0.2)
min ≤ med ≤ max:
0 ≤ 0 ≤ 8
IQR (CV) : 0 (6.6)
0 : 485533 ( 97.2% )
1 : 11554 ( 2.3% )
2 : 1893 ( 0.4% )
3 : 475 ( 0.1% )
4 : 154 ( 0.0% )
5 : 46 ( 0.0% )
6 : 15 ( 0.0% )
7 : 8 ( 0.0% )
8 : 1 ( 0.0% )
15734 (3.1%)
siblings_cancer [integer]
Mean (sd) : 0 (0.2)
min ≤ med ≤ max:
0 ≤ 0 ≤ 6
IQR (CV) : 0 (5.2)
0 : 479971 ( 96.1% )
1 : 17610 ( 3.5% )
2 : 1851 ( 0.4% )
3 : 204 ( 0.0% )
4 : 37 ( 0.0% )
5 : 5 ( 0.0% )
6 : 1 ( 0.0% )
15734 (3.1%)
siblings_mental_disorder [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 4
IQR (CV) : 0 (13.9)
0 : 496961 ( 99.5% )
1 : 2598 ( 0.5% )
2 : 102 ( 0.0% )
3 : 16 ( 0.0% )
4 : 2 ( 0.0% )
15734 (3.1%)
children_stroke [integer]
Mean (sd) : 0 (0)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (41.8)
0 : 504631 ( 99.9% )
1 : 289 ( 0.1% )
2 : 13 ( 0.0% )
3 : 1 ( 0.0% )
10479 (2.0%)
children_heart_attack [integer]
Mean (sd) : 0 (0)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (60.9)
0 : 504792 ( 100.0% )
1 : 138 ( 0.0% )
2 : 3 ( 0.0% )
3 : 1 ( 0.0% )
10479 (2.0%)
children_diabetes [integer]
Mean (sd) : 0 (0)
min ≤ med ≤ max:
0 ≤ 0 ≤ 4
IQR (CV) : 0 (27.6)
0 : 504210 ( 99.9% )
1 : 666 ( 0.1% )
2 : 49 ( 0.0% )
3 : 8 ( 0.0% )
4 : 1 ( 0.0% )
10479 (2.0%)
children_cancer [integer]
Mean (sd) : 0 (0)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (21.3)
0 : 503795 ( 99.8% )
1 : 1116 ( 0.2% )
2 : 21 ( 0.0% )
3 : 2 ( 0.0% )
10479 (2.0%)
children_mental_disorder [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 2
IQR (CV) : 0 (20.6)
0 : 503722 ( 99.8% )
1 : 1182 ( 0.2% )
2 : 30 ( 0.0% )
10479 (2.0%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27

Resurvey 1

Variable Stats / Values Freqs (% of Valid) Graph Missing
children [integer]
Mean (sd) : 2.2 (1.3)
min ≤ med ≤ max:
0 ≤ 2 ≤ 32
IQR (CV) : 2 (0.6)
15 distinct values 0 (0.0%)
siblings [integer]
Mean (sd) : 3.5 (1.8)
min ≤ med ≤ max:
0 ≤ 3 ≤ 51
IQR (CV) : 3 (0.5)
16 distinct values 21 (0.1%)
mother_still_alive [factor]
  1. Yes
  1. No
  1. Unknown
7817 ( 39.5% )
11952 ( 60.4% )
34 ( 0.2% )
0 (0.0%)
mother_current_age [integer]
Mean (sd) : 74.3 (8.3)
min ≤ med ≤ max:
50 ≤ 74 ≤ 106
IQR (CV) : 12 (0.1)
53 distinct values 12115 (61.2%)
mother_age_at_death [integer]
Mean (sd) : 69.6 (14.3)
min ≤ med ≤ max:
19 ≤ 72 ≤ 107
IQR (CV) : 19 (0.2)
88 distinct values 9196 (46.4%)
father_still_alive [factor]
  1. Yes
  1. No
  1. Unknown
5002 ( 25.3% )
14768 ( 74.6% )
33 ( 0.2% )
0 (0.0%)
father_current_age [integer]
Mean (sd) : 74.6 (7.5)
min ≤ med ≤ max:
52 ≤ 74 ≤ 100
IQR (CV) : 10 (0.1)
49 distinct values 14877 (75.1%)
father_age_at_death [integer]
Mean (sd) : 68 (12.9)
min ≤ med ≤ max:
20 ≤ 70 ≤ 101
IQR (CV) : 17 (0.2)
82 distinct values 7033 (35.5%)
mother_stroke [factor]
  1. No
  1. Yes
18070 ( 91.4% )
1699 ( 8.6% )
34 (0.2%)
mother_heart_attack [factor]
  1. No
  1. Yes
19494 ( 98.6% )
275 ( 1.4% )
34 (0.2%)
mother_diabetes [factor]
  1. No
  1. Yes
19065 ( 96.4% )
704 ( 3.6% )
34 (0.2%)
mother_mental_disorder [factor]
  1. No
  1. Yes
19651 ( 99.4% )
118 ( 0.6% )
34 (0.2%)
mother_cancer [factor]
  1. No
  1. Yes
18481 ( 93.5% )
1288 ( 6.5% )
34 (0.2%)
father_stroke [factor]
  1. No
  1. Yes
17806 ( 90.1% )
1964 ( 9.9% )
33 (0.2%)
father_heart_attack [factor]
  1. No
  1. Yes
19460 ( 98.4% )
310 ( 1.6% )
33 (0.2%)
father_diabetes [factor]
  1. No
  1. Yes
19422 ( 98.2% )
348 ( 1.8% )
33 (0.2%)
father_mental_disorder [factor]
  1. No
  1. Yes
19682 ( 99.6% )
88 ( 0.4% )
33 (0.2%)
father_cancer [factor]
  1. No
  1. Yes
17795 ( 90.0% )
1975 ( 10.0% )
33 (0.2%)
siblings_stroke [integer]
Mean (sd) : 0 (0.2)
min ≤ med ≤ max:
0 ≤ 0 ≤ 4
IQR (CV) : 0 (5.7)
0 : 18564 ( 96.6% )
1 : 573 ( 3.0% )
2 : 70 ( 0.4% )
3 : 11 ( 0.1% )
4 : 2 ( 0.0% )
583 (2.9%)
siblings_heart_attack [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (14.4)
0 : 19119 ( 99.5% )
1 : 92 ( 0.5% )
2 : 8 ( 0.0% )
3 : 1 ( 0.0% )
583 (2.9%)
siblings_diabetes [integer]
Mean (sd) : 0 (0.3)
min ≤ med ≤ max:
0 ≤ 0 ≤ 6
IQR (CV) : 0 (6.1)
0 : 18573 ( 96.6% )
1 : 493 ( 2.6% )
2 : 113 ( 0.6% )
3 : 24 ( 0.1% )
4 : 13 ( 0.1% )
5 : 3 ( 0.0% )
6 : 1 ( 0.0% )
583 (2.9%)
siblings_cancer [integer]
Mean (sd) : 0.1 (0.3)
min ≤ med ≤ max:
0 ≤ 0 ≤ 4
IQR (CV) : 0 (4.9)
0 : 18364 ( 95.5% )
1 : 743 ( 3.9% )
2 : 99 ( 0.5% )
3 : 12 ( 0.1% )
4 : 2 ( 0.0% )
583 (2.9%)
siblings_mental_disorder [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 2
IQR (CV) : 0 (14.8)
0 : 19130 ( 99.5% )
1 : 87 ( 0.5% )
2 : 3 ( 0.0% )
583 (2.9%)
children_stroke [integer]
Min : 0
Mean : 0
Max : 1
0 : 19468 ( 99.9% )
1 : 21 ( 0.1% )
314 (1.6%)
children_heart_attack [integer]
Min : 0
Mean : 0
Max : 1
0 : 19482 ( 100.0% )
1 : 7 ( 0.0% )
314 (1.6%)
children_diabetes [integer]
Mean (sd) : 0 (0)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (26.8)
0 : 19458 ( 99.8% )
1 : 27 ( 0.1% )
2 : 3 ( 0.0% )
3 : 1 ( 0.0% )
314 (1.6%)
children_cancer [integer]
Min : 0
Mean : 0
Max : 1
0 : 19433 ( 99.7% )
1 : 56 ( 0.3% )
314 (1.6%)
children_mental_disorder [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 2
IQR (CV) : 0 (20.8)
0 : 19443 ( 99.8% )
1 : 45 ( 0.2% )
2 : 1 ( 0.0% )
314 (1.6%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27

Resurvey 2

Variable Stats / Values Freqs (% of Valid) Graph Missing
children [integer]
Mean (sd) : 2.1 (1.2)
min ≤ med ≤ max:
0 ≤ 2 ≤ 12
IQR (CV) : 2 (0.6)
13 distinct values 198 (0.8%)
siblings [integer]
Mean (sd) : 3.6 (1.8)
min ≤ med ≤ max:
0 ≤ 3 ≤ 15
IQR (CV) : 3 (0.5)
16 distinct values 236 (0.9%)
mother_still_alive [factor]
  1. Yes
  1. No
  1. Unknown
7885 ( 31.5% )
17101 ( 68.3% )
68 ( 0.3% )
198 (0.8%)
mother_current_age [integer]
Mean (sd) : 78.2 (7.6)
min ≤ med ≤ max:
53 ≤ 78 ≤ 110
IQR (CV) : 10 (0.1)
49 distinct values 17479 (69.2%)
mother_age_at_death [integer]
Mean (sd) : 71.3 (14.9)
min ≤ med ≤ max:
15 ≤ 74 ≤ 110
IQR (CV) : 19 (0.2)
92 distinct values 9611 (38.1%)
father_still_alive [factor]
  1. Yes
  1. No
  1. Unknown
4548 ( 18.2% )
20410 ( 81.5% )
96 ( 0.4% )
198 (0.8%)
father_current_age [integer]
Mean (sd) : 78.3 (6.9)
min ≤ med ≤ max:
59 ≤ 78 ≤ 103
IQR (CV) : 10 (0.1)
43 distinct values 20762 (82.2%)
father_age_at_death [integer]
Mean (sd) : 69.5 (13.7)
min ≤ med ≤ max:
18 ≤ 72 ≤ 104
IQR (CV) : 19 (0.2)
84 distinct values 7004 (27.7%)
mother_stroke [factor]
  1. No
  1. Yes
22861 ( 91.5% )
2125 ( 8.5% )
266 (1.1%)
mother_heart_attack [factor]
  1. No
  1. Yes
24439 ( 97.8% )
547 ( 2.2% )
266 (1.1%)
mother_diabetes [factor]
  1. No
  1. Yes
23761 ( 95.1% )
1225 ( 4.9% )
266 (1.1%)
mother_cancer [factor]
  1. No
  1. Yes
23362 ( 93.5% )
1624 ( 6.5% )
266 (1.1%)
father_stroke [factor]
  1. No
  1. Yes
22456 ( 90.0% )
2502 ( 10.0% )
294 (1.2%)
father_heart_attack [factor]
  1. No
  1. Yes
24347 ( 97.6% )
611 ( 2.4% )
294 (1.2%)
father_diabetes [factor]
  1. No
  1. Yes
24354 ( 97.6% )
604 ( 2.4% )
294 (1.2%)
father_cancer [factor]
  1. No
  1. Yes
22464 ( 90.0% )
2494 ( 10.0% )
294 (1.2%)
siblings_stroke [integer]
Mean (sd) : 0 (0.3)
min ≤ med ≤ max:
0 ≤ 0 ≤ 6
IQR (CV) : 0 (5.3)
0 : 23317 ( 95.9% )
1 : 867 ( 3.6% )
2 : 108 ( 0.4% )
3 : 17 ( 0.1% )
4 : 6 ( 0.0% )
5 : 3 ( 0.0% )
6 : 2 ( 0.0% )
932 (3.7%)
siblings_heart_attack [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 6
IQR (CV) : 0 (9.5)
0 : 23994 ( 98.7% )
1 : 294 ( 1.2% )
2 : 22 ( 0.1% )
3 : 6 ( 0.0% )
4 : 2 ( 0.0% )
5 : 1 ( 0.0% )
6 : 1 ( 0.0% )
932 (3.7%)
siblings_diabetes [integer]
Mean (sd) : 0.1 (0.4)
min ≤ med ≤ max:
0 ≤ 0 ≤ 8
IQR (CV) : 0 (4.7)
0 : 22879 ( 94.1% )
1 : 1078 ( 4.4% )
2 : 245 ( 1.0% )
3 : 67 ( 0.3% )
4 : 30 ( 0.1% )
5 : 11 ( 0.0% )
6 : 7 ( 0.0% )
7 : 2 ( 0.0% )
8 : 1 ( 0.0% )
932 (3.7%)
siblings_cancer [integer]
Mean (sd) : 0.1 (0.3)
min ≤ med ≤ max:
0 ≤ 0 ≤ 6
IQR (CV) : 0 (4.1)
0 : 22768 ( 93.6% )
1 : 1338 ( 5.5% )
2 : 177 ( 0.7% )
3 : 31 ( 0.1% )
4 : 4 ( 0.0% )
5 : 1 ( 0.0% )
6 : 1 ( 0.0% )
932 (3.7%)
children_stroke [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (28.2)
0 : 24673 ( 99.8% )
1 : 32 ( 0.1% )
2 : 3 ( 0.0% )
3 : 3 ( 0.0% )
541 (2.1%)
children_heart_attack [integer]
Mean (sd) : 0 (0)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (36.7)
0 : 24688 ( 99.9% )
1 : 17 ( 0.1% )
2 : 3 ( 0.0% )
3 : 3 ( 0.0% )
541 (2.1%)
children_diabetes [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (15.8)
0 : 24599 ( 99.5% )
1 : 99 ( 0.4% )
2 : 10 ( 0.0% )
3 : 3 ( 0.0% )
541 (2.1%)
children_cancer [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (16.8)
0 : 24611 ( 99.6% )
1 : 92 ( 0.4% )
2 : 4 ( 0.0% )
3 : 4 ( 0.0% )
541 (2.1%)
mother_depression [factor]
  1. No
  1. Yes
24891 ( 99.6% )
95 ( 0.4% )
266 (1.1%)
mother_copd_etc [factor]
  1. No
  1. Yes
23531 ( 94.2% )
1455 ( 5.8% )
266 (1.1%)
father_depression [factor]
  1. No
  1. Yes
24910 ( 99.8% )
48 ( 0.2% )
294 (1.2%)
father_copd_etc [factor]
  1. No
  1. Yes
23045 ( 92.3% )
1913 ( 7.7% )
294 (1.2%)
siblings_depression [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 6
IQR (CV) : 0 (15.6)
0 : 24189 ( 99.5% )
1 : 122 ( 0.5% )
2 : 4 ( 0.0% )
3 : 3 ( 0.0% )
5 : 1 ( 0.0% )
6 : 1 ( 0.0% )
932 (3.7%)
siblings_copd_etc [integer]
Mean (sd) : 0 (0.2)
min ≤ med ≤ max:
0 ≤ 0 ≤ 9
IQR (CV) : 0 (7.6)
0 : 23783 ( 97.8% )
1 : 473 ( 1.9% )
2 : 46 ( 0.2% )
3 : 11 ( 0.0% )
4 : 4 ( 0.0% )
5 : 1 ( 0.0% )
6 : 1 ( 0.0% )
9 : 1 ( 0.0% )
932 (3.7%)
children_depression [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (29.7)
0 : 24676 ( 99.9% )
1 : 27 ( 0.1% )
2 : 4 ( 0.0% )
3 : 4 ( 0.0% )
541 (2.1%)
children_copd_etc [integer]
Mean (sd) : 0 (0.1)
min ≤ med ≤ max:
0 ≤ 0 ≤ 3
IQR (CV) : 0 (21.1)
0 : 24645 ( 99.7% )
1 : 58 ( 0.2% )
2 : 4 ( 0.0% )
3 : 4 ( 0.0% )
541 (2.1%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27




International Coordinating Centre, China Kadoorie Biobank (CKB), CTSU, Nuffield Department of Population Health, University of Oxford Old Road Campus, Headington, Oxford, OX3 7LF

Tel: +44 (0)1865 743743 | Fax: +44 (0)1865 743985 | Email:

Copyright China Kadoorie Biobank (CKB), University of Oxford, (2024)

Page generated: 27-02-2024