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. 2022 Mar 21;5:21. [Version 1] doi: 10.12688/hrbopenres.13525.1

Table 3. Key characteristics at Wave 1 baseline (n=8,174).

Variable Female Male All
Sex 4,430 (54) 3,744 (46) 8,174
Age (Yrs) 50-54 895 (20) 726 (19) 1,621 (20)
55-59 916 (21) 735 (20) 1,651 (20)
60-64 778 (18) 616 (16) 1,394 (17)
65-69 608 (14) 591 (16) 1,199 (15)
70-74 488 (11) 477 (13) 965 (12)
75-79 386 (9) 329 (9) 715 (9)
80-84 222 (5) 174 (5) 396(5)
85+ 137 (3) 94 (3) 231 (3)
Missing 0 (0) 1 (<1) 1 (<1)
Education Primary/none 1,256 (28) 1,248 (33) 2,504 (31)
Secondary 2,616 (59) 1,896 (51) 4,512 (55)
Tertiary/higher 555 (13) 598 (16) 1,153 (14)
Missing 3 (<1) 1 (<1) 4 (<1)
BMI Mean (St Dev) 26.4 (5.6) 28.2 (3.9) 27.2 (4.9)
Missing 1,254 (28) 1,048 (28) 2,302 (28)
Smoking Current 810 (18) 680 (18) 1,490 (18)
Past 1,387 (31) 1,730 (46) 3,117 (38)
Never 2,233 (50) 1,333 (36) 3,566 (44)
Missing 0 (0) 1 (<1) 1 (<1)
Diagnoses Diabetes 266 (6) 368 (10) 634 (8)
Missing 5 (<1) 7 (<1) 12 (<1)
Cancer 306 (7) 206 (6) 512 (6)
Missing 1 (<1) 3 (<1) 4 (<1)
Lung disease 186 (4) 144 (4) 330 (4)
Missing 1 (<1) 3 (<1) 4 (<1)
Hypertension 1,651 (37) 1,380 (37) 3,031 (37)
Missing 5 (<1) 7 (<1) 12 (<1)
Heart disease 721 (16) 836 (22) 1,557 (19)
Missing 5 (<1) 7 (<1) 12 (<1)
Stroke 60 (1) 73 (2) 133 (2)
Missing 5 (<1) 7 (<1) 12 (<1)
ADLs (/3) * No ADLs 3,716 (94) 3,164 (95) 6,880 (95) *
1 ADL 140 (4) 95 (3) 235 (3)
2 ADLs 44 (1) 38 (1) 82 (1)
3 ADLs 42 (1) 19 (1) 61 (1)
Missing 31 (<1) 30 (<1) 61 (2)
IADLs (/5) No IADLs 4,148 (94) 3,568 (95) 8,170 (94)
1 IADL 166 (4) 101 (3) 267 (3)
2+ IADLs 115 (3) 72 (2) 187 (2)
Missing 1 (<1) 3 (<1) 4 (<1)

Legend: For categorical variables, cells are number of people (%). For continuous and count variables, cells are mean (standard deviation). BMI: Body mass index. (I)ADLs: (Instrumental) Activities of Daily Living. For definitions and sources, see Table 2. * ADL count is taken from Wave 2 due to an inconsistency in how questions are asked between Wave 1 and subsequent Waves.