Born in Bradford Data Dictionary

BiB Growing Up DXA scan (mother)

Table ID: BiB_GrowingUp.dxa_scan_m

github | csv

Entity type Variables Entities Updated Related tables
Participant 127 488 2021-08-06 NA

DXA scan on cohort mothers completed during the BiB Growing Up study.

variable label value_type summary
AgeMonths Age in months at DXA scan decimal mean (sd)
474.99 (68.84)

min < median < max
317.00 < 470.00 < 646.00

100.00% complete

AgeYears Age in years at DXA scan decimal mean (sd)
39.10 (5.75)

min < median < max
26.00 < 39.00 < 53.00

100.00% complete

ScanYear Calendar year of DXA scan decimal mean (sd)
2017.45 (0.50)

min < median < max
2017.00 < 2017.00 < 2018.00

100.00% complete

ScanMonth Calendar month of DXA scan decimal mean (sd)
6.21 (3.47)

min < median < max
1.00 < 6.00 < 12.00

100.00% complete

status Current state of this exam decimal 0 : Not reviewed
100.00% complete

height Height (cm) decimal mean (sd)
160.84 (6.78)

min < median < max
144.50 < 160.90 < 184.50

100.00% complete

weight Weight (kg) decimal mean (sd)
72.95 (15.31)

min < median < max
41.00 < 69.80 < 185.00

100.00% complete

scantype Scan type decimal 10 : Whole body scan
100.00% complete

scanner_id Serial number of scanner decimal mean (sd)
200542.00 (0.00)

min < median < max
200542.00 < 200542.00 < 200542.00

100.00% complete

site Site of scan decimal 0 : AP spine
13 : Paediatric total body
3 : Total body
100.00% complete

side Side scanned decimal 0 : NA
100.00% complete

acquisition_version Version of the aquisition techniques when image was aquired text 1 unique values
488 non-missing values
9 characters
analysis_version Version of analysis techniques text 1 unique values
488 non-missing values
9 characters
avg_percent_fat Average percent fat for the whole image decimal mean (sd)
0.39 (0.06)

min < median < max
0.17 < 0.40 < 0.52

100.00% complete

avg_tissue_thickness Average tissue thickness for the whole image decimal mean (sd)
10.57 (1.32)

min < median < max
7.63 < 10.44 < 14.83

100.00% complete

unread_notes_exist Review notes read decimal 0 : No
100.00% complete

scan_length Length of acquisition field (mm) decimal mean (sd)
1968.30 (0.00)

min < median < max
1968.30 < 1968.30 < 1968.30

100.00% complete

scan_width Width of acquisition field (mm) decimal mean (sd)
657.62 (0.00)

min < median < max
657.62 < 657.62 < 657.62

100.00% complete

object_plane Y object plan offset (mm) decimal mean (sd)
0.00 (0.00)

min < median < max
0.00 < 0.00 < 0.00

100.00% complete

measured_item_length Length of item measured decimal mean (sd)
0.00 (0.00)

min < median < max
0.00 < 0.00 < 0.00

100.00% complete

smart_scanned Scan acquired using smart scanning decimal 0 : No
1 : Yes
100.00% complete

population Reference Population used decimal 131 : UK
100.00% complete

norm_version Version of the reference data used decimal mean (sd)
112.00 (0.00)

min < median < max
112.00 < 112.00 < 112.00

100.00% complete

method Method of analysis (composition) decimal 2 : Standard
100.00% complete

head_bmd Bone mineral density (g/cm2) of head decimal mean (sd)
2.43 (0.29)

min < median < max
1.68 < 2.42 < 3.39

100.00% complete

arms_bmd Bone mineral density (g/cm2) of arms decimal mean (sd)
0.88 (0.11)

min < median < max
0.58 < 0.90 < 1.16

100.00% complete

legs_bmd Bone mineral density (g/cm2) of legs decimal mean (sd)
1.18 (0.11)

min < median < max
0.93 < 1.17 < 1.53

100.00% complete

trnk_bmd Bone mineral density (g/cm2) of trunk decimal mean (sd)
1.00 (0.10)

min < median < max
0.67 < 0.99 < 1.25

100.00% complete

ribs_bmd Bone mineral density (g/cm2) of ribs decimal mean (sd)
0.86 (0.10)

min < median < max
0.58 < 0.86 < 1.33

100.00% complete

pelv_bmd Bone mineral density (g/cm2) of pelvis decimal mean (sd)
1.04 (0.12)

min < median < max
0.70 < 1.03 < 1.36

100.00% complete

spin_bmd Bone mineral density (g/cm2) of spine decimal mean (sd)
1.12 (0.12)

min < median < max
0.75 < 1.12 < 1.45

100.00% complete

totl_bmd Bone mineral density (g/cm2) - total decimal mean (sd)
1.20 (0.10)

min < median < max
0.92 < 1.20 < 1.44

100.00% complete

larm_bmd Bone mineral density (g/cm2) of left arm decimal mean (sd)
0.87 (0.12)

min < median < max
0.57 < 0.88 < 1.23

100.00% complete

lleg_bmd Bone mineral density (g/cm2) of left leg decimal mean (sd)
1.17 (0.11)

min < median < max
0.91 < 1.17 < 1.51

100.00% complete

ltrnk_bmd Bone mineral density (g/cm2) of left trunk decimal mean (sd)
0.99 (0.10)

min < median < max
0.62 < 0.98 < 1.26

100.00% complete

ltot_bmd Bone mineral density (g/cm2) of left total decimal mean (sd)
1.18 (0.11)

min < median < max
0.86 < 1.18 < 1.46

100.00% complete

rarm_bmd Bone mineral density (g/cm2) of right arm decimal mean (sd)
0.89 (0.12)

min < median < max
0.58 < 0.91 < 1.16

100.00% complete

rleg_bmd Bone mineral density (g/cm2) of right leg decimal mean (sd)
1.18 (0.11)

min < median < max
0.95 < 1.18 < 1.55

100.00% complete

rtrnk_bmd Bone mineral density (g/cm2) of right trunk decimal mean (sd)
1.01 (0.10)

min < median < max
0.71 < 1.01 < 1.26

100.00% complete

rtot_bmd Bone mineral density (g/cm2) of right total decimal mean (sd)
1.21 (0.11)

min < median < max
0.94 < 1.22 < 1.55

100.00% complete

head_bmc Bone mineral content (g) of head decimal mean (sd)
531.07 (78.52)

min < median < max
333.46 < 524.95 < 1073.70

100.00% complete

arms_bmc Bone mineral content (g) of arms decimal mean (sd)
295.50 (41.47)

min < median < max
142.91 < 292.13 < 423.97

100.00% complete

legs_bmc Bone mineral content (g) of legs decimal mean (sd)
831.68 (123.44)

min < median < max
559.77 < 823.11 < 1263.06

100.00% complete

trnk_bmc Bone mineral content (g) of trunk decimal mean (sd)
718.47 (118.17)

min < median < max
355.08 < 701.33 < 1111.82

100.00% complete

ribs_bmc Bone mineral content (g) of ribs decimal mean (sd)
220.29 (49.43)

min < median < max
101.41 < 214.41 < 521.98

100.00% complete

pelv_bmc Bone mineral content (g) of pelvis decimal mean (sd)
306.20 (52.93)

min < median < max
163.20 < 300.15 < 464.31

100.00% complete

spin_bmc Bone mineral content (g) of spine decimal mean (sd)
191.98 (33.09)

min < median < max
90.46 < 188.28 < 293.00

100.00% complete

totl_bmc Bone mineral content (g) - total decimal mean (sd)
2376.72 (306.62)

min < median < max
1534.71 < 2352.29 < 3286.86

100.00% complete

and_bmc Bone mineral content (g) of android decimal mean (sd)
44.11 (7.97)

min < median < max
20.18 < 43.18 < 69.33

100.00% complete

gyn_bmc Bone mineral content (g) of gynoid decimal mean (sd)
228.46 (36.66)

min < median < max
135.48 < 224.92 < 361.06

100.00% complete

anvis_bmc Bone mineral content (g) of android visceral decimal mean (sd)
744.06 (572.13)

min < median < max
13.46 < 629.90 < 3208.13

100.00% complete

larm_bmc Bone mineral content (g) of left arm decimal mean (sd)
145.18 (20.85)

min < median < max
95.15 < 143.01 < 226.08

100.00% complete

lleg_bmc Bone mineral content (g) of left leg decimal mean (sd)
413.34 (62.07)

min < median < max
273.45 < 409.34 < 614.56

100.00% complete

ltrnk_bmc Bone mineral content (g) of left trunk decimal mean (sd)
354.82 (59.06)

min < median < max
167.04 < 347.21 < 543.81

100.00% complete

ltot_bmc Bone mineral content (g) of left total decimal mean (sd)
1159.42 (162.09)

min < median < max
676.98 < 1151.59 < 1599.50

100.00% complete

rarm_bmc Bone mineral content (g) of right arm decimal mean (sd)
150.33 (21.75)

min < median < max
46.87 < 149.23 < 216.54

100.00% complete

rleg_bmc Bone mineral content (g) of right leg decimal mean (sd)
418.33 (62.15)

min < median < max
281.25 < 414.63 < 648.50

100.00% complete

rtrnk_bmc Bone mineral content (g) of right trunk decimal mean (sd)
363.65 (60.92)

min < median < max
188.04 < 355.90 < 568.01

100.00% complete

rtot_bmc Bone mineral content (g) of right total decimal mean (sd)
1217.31 (175.82)

min < median < max
732.66 < 1206.23 < 1802.38

100.00% complete

armdiff_bmc Bone mass (g) of left vs right arm difference decimal mean (sd)
5.15 (9.81)

min < median < max
-75.07 < 5.05 < 43.56

100.00% complete

legdiff_bmc Bone mineral content (g) of left vs right leg difference decimal mean (sd)
4.99 (13.88)

min < median < max
-74.85 < 4.91 < 152.87

100.00% complete

trnkdiff_bmc Bone mineral content (g) of left vs right trunk difference decimal mean (sd)
8.83 (20.84)

min < median < max
-83.34 < 9.04 < 141.74

100.00% complete

boddiff_bmc Bone mineral content (g) of left vs right body difference decimal mean (sd)
57.89 (142.68)

min < median < max
-496.01 < 57.79 < 796.40

100.00% complete

head_area Bone area (cm2) of head decimal mean (sd)
218.18 (22.85)

min < median < max
170.99 < 217.25 < 614.42

100.00% complete

arms_area Bone area (cm2) of arms decimal mean (sd)
337.70 (50.32)

min < median < max
200.73 < 329.68 < 507.14

100.00% complete

legs_area Bone area (cm2) of legs decimal mean (sd)
705.69 (67.69)

min < median < max
467.05 < 699.95 < 900.82

100.00% complete

trnk_area Bone area(cm2) (cm2) of trunk decimal mean (sd)
717.11 (66.21)

min < median < max
531.35 < 712.01 < 915.98

100.00% complete

ribs_area Bone area (cm2) of ribs decimal mean (sd)
252.92 (33.89)

min < median < max
162.68 < 250.56 < 393.42

100.00% complete

pelv_area Bone area (cm2) of pelvis decimal mean (sd)
293.54 (29.46)

min < median < max
210.77 < 291.45 < 381.07

100.00% complete

spin_area Bone area (cm2) of spine decimal mean (sd)
170.65 (16.60)

min < median < max
115.64 < 169.90 < 224.30

100.00% complete

totl_area Bone area (cm2) - total decimal mean (sd)
1978.69 (159.63)

min < median < max
1589.22 < 1968.46 < 2525.25

100.00% complete

larm_area Bone area (cm2) of left arm decimal mean (sd)
167.69 (25.64)

min < median < max
105.06 < 163.77 < 252.03

100.00% complete

lleg_area Bone area (cm2) of left leg decimal mean (sd)
352.21 (34.72)

min < median < max
230.83 < 350.20 < 452.48

100.00% complete

ltrnk_area Bone area (cm2) of left trunk decimal mean (sd)
358.47 (33.41)

min < median < max
267.89 < 356.39 < 454.44

100.00% complete

ltot_area Bone area (cm2) of left total decimal mean (sd)
979.03 (84.72)

min < median < max
754.31 < 980.73 < 1208.86

100.00% complete

rarm_area Bone area (cm2) of right arm decimal mean (sd)
170.02 (25.88)

min < median < max
66.48 < 164.47 < 262.43

100.00% complete

rleg_area Bone area (cm2) of right leg decimal mean (sd)
353.48 (33.64)

min < median < max
236.21 < 349.95 < 448.35

100.00% complete

rtrnk_area Bone area (cm2) of right trunk decimal mean (sd)
358.64 (35.68)

min < median < max
263.46 < 357.53 < 485.69

100.00% complete

rtot_area Bone area (cm2) of right total decimal mean (sd)
999.66 (86.36)

min < median < max
733.20 < 994.39 < 1316.38

100.00% complete

arms_leanmass Lean mass (g) of arms decimal mean (sd)
4558.71 (716.81)

min < median < max
2770.94 < 4457.54 < 7161.29

100.00% complete

legs_leanmass Lean mass (g) of legs decimal mean (sd)
14312.23 (2380.10)

min < median < max
8831.31 < 14004.57 < 22103.33

100.00% complete

trnk_leanmass Lean mass (g) of trunk decimal mean (sd)
19831.75 (2856.30)

min < median < max
13208.03 < 19434.37 < 30243.34

100.00% complete

tot_leanmass Lean mass (g) of total decimal mean (sd)
41735.62 (5726.25)

min < median < max
27765.67 < 41043.07 < 61261.18

100.00% complete

and_leanmass Lean mass (g) of android decimal mean (sd)
2944.55 (511.01)

min < median < max
1694.05 < 2866.05 < 4633.01

100.00% complete

gyn_leanmass Lean mass (g) of gynoid decimal mean (sd)
6333.00 (993.42)

min < median < max
4017.64 < 6249.19 < 9418.11

100.00% complete

anvis_leanmass Lean mass (g) of android visceral decimal mean (sd)
2369.01 (371.53)

min < median < max
1393.49 < 2333.11 < 3619.05

100.00% complete

larm_leanmass Lean mass (g) of left arm decimal mean (sd)
2231.81 (362.97)

min < median < max
1388.77 < 2198.00 < 3479.77

100.00% complete

lleg_leanmass Lean mass (g) of left leg decimal mean (sd)
7106.77 (1182.23)

min < median < max
4350.32 < 6967.81 < 10888.73

100.00% complete

ltrnk_leanmass Lean mass (g) of left trunk decimal mean (sd)
10066.89 (1460.42)

min < median < max
6541.99 < 9935.68 < 15074.38

100.00% complete

ltot_leanmass Lean mass (g) of left total decimal mean (sd)
20816.79 (2859.04)

min < median < max
13542.21 < 20559.52 < 29511.20

100.00% complete

rarm_leanmass Lean mass (g) of right arm decimal mean (sd)
2326.90 (371.70)

min < median < max
911.75 < 2286.35 < 3681.52

100.00% complete

rleg_leanmass Lean mass (g) of right leg decimal mean (sd)
7205.45 (1216.90)

min < median < max
4384.87 < 7077.78 < 11320.84

100.00% complete

rtrnk_leanmass Lean mass (g) of right trunk decimal mean (sd)
9764.86 (1444.52)

min < median < max
6147.61 < 9568.03 < 15168.96

100.00% complete

rtot_leanmass Lean mass (g) of right total decimal mean (sd)
20918.83 (2923.18)

min < median < max
13895.25 < 20504.02 < 31749.98

100.00% complete

armdiff_leanmass Lean mass (g) of left vs right arm difference decimal mean (sd)
95.09 (161.24)

min < median < max
-947.43 < 88.22 < 880.70

100.00% complete

legdiff_leanmass Lean mass (g) of left vs right leg difference decimal mean (sd)
98.68 (303.61)

min < median < max
-2355.92 < 114.50 < 1264.00

100.00% complete

trnkdiff_leanmass Lean mass (g) of left vs right trunk difference decimal mean (sd)
-302.02 (529.60)

min < median < max
-1997.10 < -291.30 < 1521.83

100.00% complete

boddiff_leanmass Lean mass (g) of left vs right body difference decimal mean (sd)
102.04 (805.11)

min < median < max
-2874.80 < 64.88 < 3593.58

100.00% complete

arms_fatmass Fat mass (g) of arms decimal mean (sd)
3045.53 (1038.54)

min < median < max
608.36 < 2921.76 < 7480.14

100.00% complete

legs_fatmass Fat mass (g) of legs decimal mean (sd)
10111.62 (3282.26)

min < median < max
3695.00 < 9620.25 < 23530.63

100.00% complete

trnk_fatmass Fat mass (g) of trunk decimal mean (sd)
14536.81 (6107.16)

min < median < max
2483.80 < 13696.31 < 37269.32

100.00% complete

tot_fatmass Fat mass (g) of total decimal mean (sd)
28528.62 (9761.15)

min < median < max
7671.49 < 26895.62 < 61992.06

100.00% complete

and_fatmass Fat mass (g) of android decimal mean (sd)
2394.79 (1164.75)

min < median < max
234.31 < 2209.42 < 6526.75

100.00% complete

gyn_fatmass Fat mass (g) of gynoid decimal mean (sd)
5009.17 (1533.50)

min < median < max
1670.98 < 4784.89 < 10833.65

100.00% complete

anvis_fatmass Fat mass (g) of android visceral decimal mean (sd)
701.95 (539.74)

min < median < max
12.70 < 594.25 < 3026.54

100.00% complete

larm_fatmass Fat mass (g) of left arm decimal mean (sd)
1498.86 (513.47)

min < median < max
333.90 < 1443.43 < 3740.07

100.00% complete

lleg_fatmass Fat mass (g) of left leg decimal mean (sd)
4993.05 (1613.64)

min < median < max
1828.01 < 4790.32 < 11615.60

100.00% complete

ltrnk_fatmass Fat mass (g) of left trunk decimal mean (sd)
7349.72 (3114.20)

min < median < max
1244.72 < 6863.67 < 18818.62

100.00% complete

ltot_fatmass Fat mass (g) of left total decimal mean (sd)
14233.61 (4906.45)

min < median < max
3698.37 < 13425.07 < 30685.42

100.00% complete

rarm_fatmass Fat mass (g) of right arm decimal mean (sd)
1546.67 (537.85)

min < median < max
274.46 < 1463.12 < 3740.07

100.00% complete

rleg_fatmass Fat mass (g) of right leg decimal mean (sd)
5118.56 (1680.62)

min < median < max
1831.11 < 4864.21 < 11915.03

100.00% complete

rtrnk_fatmass Fat mass (g) of right trunk decimal mean (sd)
7187.09 (3008.39)

min < median < max
1239.08 < 6728.84 < 18450.70

100.00% complete

rtot_fatmass Fat mass (g) of right total decimal mean (sd)
14295.01 (4866.35)

min < median < max
3973.12 < 13447.30 < 31638.32

100.00% complete

lbmht_am_adjust Age-matched adjusted to young normal (LBM for height) decimal mean (sd)
1060.96 (40.73)

min < median < max
1025.00 < 1025.00 < 1107.00

100.00% complete

lbmht_percent_ya Percent young adult (LBM for height) decimal mean (sd)
135.16 (22.79)

min < median < max
51.23 < 136.74 < 216.97

100.00% complete

lbmht_percent_am Percent age-matched (LBM for height) decimal mean (sd)
117.80 (24.43)

min < median < max
46.62 < 117.65 < 188.62

43.85% complete

lbmht_zsco_ya Young adult t-score (LBM for height) decimal mean (sd)
1.29 (0.84)

min < median < max
-1.79 < 1.35 < 4.42

100.00% complete

lbmht_zsco_am Age-matched z-score (LBM for height) decimal mean (sd)
0.70 (0.96)

min < median < max
-2.16 < 0.74 < 3.18

43.85% complete

tot_bmdage_am_adjust Total age-matched adjusted to normal BMD for age decimal mean (sd)
1105.82 (9.76)

min < median < max
1025.00 < 1107.00 < 1107.00

100.00% complete

tot_bmdage_percent_ya Total percent BMD young adult t-score decimal mean (sd)
108.36 (7.19)

min < median < max
88.34 < 108.29 < 125.44

100.00% complete

tot_bmdage_percent_am Total percent BMD age-matched decimal mean (sd)
108.41 (7.08)

min < median < max
88.65 < 108.45 < 125.95

98.57% complete

tot_bmdage_zsco_ya Total BMD young adult t-score decimal mean (sd)
1.18 (1.01)

min < median < max
-1.64 < 1.17 < 3.58

100.00% complete

tot_bmdage_zsco_am Total BMD age-matched z-score decimal mean (sd)
1.18 (0.99)

min < median < max
-1.59 < 1.18 < 3.63

98.57% complete

armdiff_fatmass Fat mass (g) of left vs right arm difference decimal mean (sd)
47.81 (165.23)

min < median < max
-1009.70 < 32.53 < 1179.24

100.00% complete

legdiff_fatmass Fat mass (g) of left vs right leg difference decimal mean (sd)
125.51 (288.76)

min < median < max
-746.74 < 107.88 < 1557.16

100.00% complete

trnkdiff_fatmass Fat mass (g) of left vs right trunk difference decimal mean (sd)
-162.63 (447.12)

min < median < max
-2040.63 < -132.09 < 1654.74

100.00% complete

boddiff_fatmass Fat mass (g) of left vs right body difference decimal mean (sd)
61.41 (478.65)

min < median < max
-2201.42 < 100.91 < 1955.89

100.00% complete