Table 2.
Baseline characteristics of initial and 12 month follow-up groups
| Characteristic | Initial survey (n = 210) | 12-month follow-up survey (n = 95) | P-value |
|---|---|---|---|
| Age in years (median, IQR) | 65.5 (52–77) | 70 (60–76) | 0.16 |
| Male gender | 104 (49.5%) | 51 (53.7%) | 0.76 |
| Level of education | 0.82 | ||
| Primary school | 37 (17.6%) | 20 (21.1%) | |
| Secondary school | 111 (52.9%) | 48 (50.5%) | |
| Tertiary education | 50 (23.8%) | 21 (22.1%) | |
| Other | 12 (5.7%) | 6 (6.3%) | |
| Occupation | 0.55 | ||
| Age pension | 94 (44.8%) | 51 (53.7%) | |
| Self-funded retiree | 15 (7.1%) | 8 (8.4%) | |
| Tradesperson | 7 (3.3%) | 2 (2.1%) | |
| Professional | 12 (5.7%) | 3 (3.2%) | |
| Student | 1 (0.5%) | 0 (0%) | |
| Unemployed | 11 (5.2%) | 2 (2.1%) | |
| Invalid/carer pensioner | 20 (9.5%) | 9 (9.5%) | |
| Other | 50 (23.9%) | 20 (21%) | |
| Aboriginal or Torres Strait Islander | 4 (1.9%) | 2 (2.1%) | 0.89 |
| Healthcare worker | 9 (4.3%) | 3 (3.2%) | 0.58 |
| Married/partner | 127 (60%) | 51 (53.7%) | 0.21 |
| Comorbidities | |||
| Diabetes | 66 (31.4%) | 36 (37.9%) | 0.17 |
| Hypertension | 131 (62.4%) | 63 (66.3%) | 0.43 |
| Ischaemic heart disease | 41 (19.5%) | 25 (26.3%) | 0.09 |
| Peripheral vascular disease | 18 (8.6%) | 7 (7.4%) | 0.67 |
| Chronic lung disease | 28 (13.3%) | 17 (17.9%) | 0.20 |
| Cerebrovascular disease | 12 (5.7%) | 5 (5.3%) | 0.85 |
| Smoker (current) | 34 (16.2%) | 17 (17.9%) | 0.65 |
| Smoker (former) | 64 (30.5%) | 29 (30.5%) | 1.0 |
| Body mass index (kg/m2) | 0.87 | ||
| Underweight (<18.5) | 5 (2.5%) | 3 (3.2%) | |
| Normal (18.5–24.9) | 45 (22.5%) | 22 (23.2%) | |
| Overweight (25.0–29.9) | 68 (34%) | 29 (30.5%) | |
| Obese (>30) | 82 (41%) | 38 (41%) | |
| Family history of kidney disease | 37 (17.6%) | 14 (14.7%) | 0.46 |
| CKD stage | 0.04 | ||
| CKD stage 5 (eGFR <15) | 1 (0.5%) | 0 (0%) | |
| CKD stage 4 (eGFR 15–30) | 44 (21%) | 29 (30.5%) | |
| CKD stage 3 (eGFR 30.1–60) | 89 (42.4%) | 44 (46.3%) | |
| CKD stage 1 & 2 (eGFR >60) | 74 (35.2%) | 22 (23.2%) | |
| Creatinine, µmol/L (median, IQR) | 115 (81–155) | 137 (99–179) | 0.06 |