Table 1:
Baseline characteristics of study participants overall and by testosterone quartile
| Overall | Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | |
|---|---|---|---|---|---|
| Number of participants | 5535 (100·0%) | 1641 (29·6%) | 1104 (20·0%) | 1497 (27·0%) | 1293 (23·4%) |
|
| |||||
| Age, years | 74·0 (71·7–77·7) | 73·9 (71·6–77·4) | 73·9 (71·7–77·8) | 73·7 (71·5–77·2) | 74·5 (72·0–78·1) |
|
| |||||
| Age distribution, years | |||||
| 70–74 | 2781 (50·2%) | 847 (51·6%) | 557 (50·5%) | 792 (52·9%) | 585 (45·2%) |
| 75–79 | 1745 (31·5%) | 501 (30·5%) | 351 (31·8%) | 442 (29·5%) | 451 (34·9%) |
| 80–84 | 760 (13·7%) | 220 (13·4%) | 143 (13·0%) | 205 (13·7%) | 192 (14·8%) |
| ≥85 | 249 (4·5%) | 73 (4·4%) | 53 (4·8%) | 58 (3·9%) | 65 (5·0%) |
|
| |||||
| Weight, kg* | 69·8 (61·9–79·2) | 69·0 (61·8–79·0) | 69·6 (62·0–79·0) | 70·4 (61·6–79·6) | 69·8 (62·2–79·3) |
|
| |||||
| Height, cm† | 159·0 (155·0–163·0) | 159·0 (155·0–163·0) | 159·0 (155·0–164·0) | 160·0 (155·0–163·0) | 159·0 (155·0–163·0) |
|
| |||||
| Body-mass index, kg/m2‡ | |||||
| <18·5 | 44 (0·8%) | 15 (0·9%) | 9 (0·8%) | 11 (0·7%) | 9 (0·7%) |
| 18·5–24·9 | 1560 (28·2%) | 479 (29·2%) | 296 (26·8%) | 429 (28·7%) | 356 (27·5%) |
| 25·0–29·9 | 2187 (39·5%) | 635 (38·7%) | 461 (41·8%) | 575 (38·4%) | 516 (40·0%) |
| ≥30·0 | 1715 (31·0%) | 504 (30·7%) | 332 (30·1%) | 477 (31·9%) | 402 (31·1%) |
|
| |||||
| Ethnicity | |||||
| European ancestry | 5470 (98·8%) | 1624 (99·0%) | 1091 (98·8%) | 1475 (98·5%) | 1280 (99·0%) |
| Other§ | 65 (1·2%) | 17 (1·0%) | 13 (1·2%) | 22 (1·5%) | 13 (1·0%) |
|
| |||||
| Blood pressure, mm Hg | |||||
| Systolic | 137·0 (126·0–149·0) | 136·0 (126·0–149·0) | 138·0 (127·0–150·0) | 138·0 (127·0–150·0) | 137·0 (127·0–149·0) |
| Diastolic | 76·0 (70·0–83·0) | 75·0 (69·0–82·0) | 76·0 (70·0–84·0) | 77·0 (70·0–84·0) | 76·0 (70·0–84·0) |
|
| |||||
| Smoking status | |||||
| Current | 156 (2·8%) | 33 (2·0%) | 35 (3·2%) | 43 (2·9%) | 45 (3·5%) |
| Former | 1739 (31·4%) | 524 (31·9%) | 353 (32·0%) | 470 (31·4%) | 392 (30·3%) |
| Never | 3640 (65·8%) | 1084 (66·1%) | 716 (64·9%) | 984 (65·7%) | 856 (66·2%) |
|
| |||||
| Alcohol consumption | |||||
| Current | 4130 (74·6%) | 1254 (76·4%) | 830 (75·2%) | 1116 (74·5%) | 930 (71·9%) |
| Former | 216 (3·9%) | 67 (4·1%) | 38 (3·4%) | 66 (4·4%) | 45 (3·5%) |
| Never | 1189 (21·5%) | 320 (19·5%) | 236 (21·4%) | 315 (21·0%) | 318 (24·6%) |
|
| |||||
| Cardiovascular disease risk factors | |||||
| Diabetes | 440 (7·9%) | 170 (10·4%) | 82 (7·4%) | 98 (6·5%) | 90 (7·0%) |
| Hypertension | 4055 (73·3%) | 1174 (71·5%) | 816 (73·9%) | 1108 (74·0%) | 957 (74·0%) |
| Dyslipidaemia | 4268 (77·1%) | 1266 (77·1%) | 849 (76·9%) | 1151 (76·9%) | 1002 (77·5%) |
| Impaired renal function¶ | 1007 (18·8%) | 311 (19·0%) | 190 (17·2%) | 245 (16·4%) | 261 (20·2%) |
Data are n (%) or median (IQR).
*
Data available for 5517 participants.
†
Data available for 5521 participants.
‡
Data available for 5506 participants.
§
Other includes 32 Asian participants and seven Aboriginal or Torres Strait Islander participants.
¶
Data available for 5382 participants.