Table 1.
Baseline characteristics of participants - with and without screening for physical activity, diet, or both.
| All participants (unscreened) | Participants included with physical activity screening | Participants included with diet screening | Participants included with physical activity or diet screening | |
|---|---|---|---|---|
| (n = 434) | (n = 324) | (n = 394) | (n = 299) | |
| Intervention participation a | ||||
| Intervention dose (calls) received (median, interquartile range, n) |
13 (8-16), n = 228 | 13 (8-16), n = 171 | 13 (8-16), n = 208 | 13 (8-16), n = 158 |
| Retention rates, n(%) | 341 (78.6) | 254 (78.4) | 309 (77.8) | 230 (76.9) |
| Health-related characteristics | ||||
| Type 2 diabetes, n (%) | 197 (45.4) | 147 (45.4) | 180 (45.3) | 137 (45.8) |
| Hypertension, n (%) | 371 (85.5) | 280 (86.4) | 340 (85.6) | 257 (86.0) |
| Chronic conditions | ||||
| 1-2 conditions, n (%) | 175 (40.3) | 125 (38.6) | 158 (39.8) | 115 (38.5) |
| 3-4 conditions, n (%) | 189 (43.5) | 141 (43.5) | 172 (43.3) | 128 (42.8) |
| 5+ conditions, n (%) | 70 (16.1) | 58 (17.9) | 67 (16.9) | 56 (18.7) |
| p b | 0.078 | 0.223 | 0.052 | |
| Body mass index, kg | 31.1 (6.8) | 31.2 (7.2) | 31.1 (6.9) | 31.3 (7.2) |
| Current smoker, n (%) | 60 (13.8) | 46 (14.2) | 56 (14.1) | 44 (14.7) |
| Demographic attributes | ||||
| Age, years | 58.2 (11.8) | 58.4 (11.7) | 58.1 (11.8) | 58.3 (11.7) |
| Gender, n (%) Female | 265 (61.1) | 204 (63.0) | 241 (60.7) | 188 (62.9) |
| Ethnicity, n (%) Caucasian | 395 (91.0) | 294 (90.7) | 362 (91.2) | 270 (90.3) |
| Marital status, n (%) Married/living together | 309 (71.2) | 229 (70.7) | 281 (70.8) | 210 (70.2) |
| Education | ||||
| Primary or less | 88 (20.3) | 73 (22.5) | 78 (19.6) | 66 (22.1) |
| Junior high school | 151 (34.8) | 114 (35.2) | 136 (34.3) | 102 (34.1) |
| Senior High school | 46 (10.6) | 36 (11.1) | 43 (10.8) | 33 (11.0) |
| Trade or technical diploma | 99 (22.8) | 67 (20.7) | 93 (23.4) | 65 (21.7) |
| University Degree | 50 (11.5) | 34 (10.5) | 47 (11.8) | 33 (11.0) |
| p for trend | 0.014 | 0.118 | 0.248 | |
| Employment, n (%) Retired | 157 (36.2) | 113 (34.9) | 141 (35.5) | 103 (34.4) |
| Weekly household income, n (%) $ ≥1500AUD | 75 (20.2) | 55 (19.6) | 64 (19.0) Δ | 48 (18.8) |
| Physical Activity | ||||
| Physical activity (minutes/week) median (25th, 75th percentile) |
60 (0, 210) | 0 (0, 70)***c Δ | 60 (0, 210) | 0 (0, 75)*** Δ |
| Physical activity (sessions/week) median (25th, 75th percentile) |
2 (0, 2) | 0 (0, 2) *** Δ | 2 (0, 2) | 0 (0, 2)*** Δ |
| Diet | ||||
| Total fat (% calories) | 36.9 (5.2) | 37.2 (5.2)* | 37.0 (5.2) | 37.3 (5.2)* |
| Saturated fat (% calories) | 14.4 (3.3) | 14.6 (3.3)** | 14.4 (3.4) | 14.7 (3.3)** |
| Fibre intake (grams/day) | 21.8 (8.0) | 21.8 (7.9) | 21.3 (7.4)*** Δ | 21.3 (7.6)** Δ |
| Vegetables (servings/day) | ||||
| median (25th, 75th percentile) | 3 (2, 4) | 3 (2, 4) | 3 (2, 4)*** Δ | 3 (2, 4)** |
| Fruit (servings/day) | ||||
| median (25th, 75th percentile) | 1 (1, 2) | 1 (1, 2) Δ | 1 (1, 2)*** Δ | 1 (1, 2)*** Δ |
a Data are given as mean (SD) or N (%) unless otherwise specified.
b Linear-by-linear association chi-square
c Bold cells represent behaviours predicted to be impacted by screening
Δ Substantial difference (≥10%) between included and excluded participants
* p < 0.05 (included participants v excluded participants)
** p < 0.01
*** p < 0.001