Table 2 Characteristics of patients at baseline and of those with valid and invalid responses to GODIN, DINE fibre and DINE fat questionnaires
| Â | Â | GODIN | DINE fibre | DINE fat | ||||
|---|---|---|---|---|---|---|---|---|
|  | Total study population (N = 832)* | Valid response | Invalid response | Valid response | Invalid response | Valid response | Invalid response | |
N (%) | Â | 349 (41.9) | 483 (58.1) | 679 (81.6) | 153 (18.4) | 616 (74.0) | 216 (26.0) | |
Patient characteristics** |  | N (%)‡ | N (%)‡ | N (%)‡ | N (%)‡ | N (%)‡ | N (%)‡ | |
Age (years) (Mean; SD) | Mean 67.2; SD 9.53 (Range 29–91) | 66.6 (9.77) | 67.6 (9.33) | 67.3 (9.57) | 66.7 (9.37) | 67.2 (9.58) | 67.3 (9.41) | |
| Â | 70Â years and older | 340 (40.9%) | 138 (40.6) | 202 (59.4) | 280 (82.4) | 60 (17.6) | 247 (72.6) | 93 (27.4) |
| Â | <70Â years | 492 (59.1%) | 211 (42.9) | 281 (57.1) | 399 (81.1) | 93 (18.9) | 369 (75.0) | 123 (25.0) |
Gender | Male | 582 (70.0) | 250 (42.9) | 332 (57.1) | 479 (82.3) | 103 (17.7) | 435 (74.7) | 147 (25.3) |
Female | 250 (30.0) | 99 (39.6) | 151 (60.4) | 200 (80.0) | 50 (20.0) | 181 (72.4) | 69 (27.6) | |
History of MI | Yes | 415 (49.9) | 182 (43.9) | 233 (56.1) | 338 (81.4) | 77 (18.6) | 310 (74.7) | 105 (25.3) |
No | 417 (50.1) | 167 (40.0) | 250 (60.0) | 341 (81.8) | 76 (18.2) | 306 (73.4) | 111 (26.6) | |
History of diabetes | Yes | 145 (17.4)) | 58 (40.0) | 87 (60.0) | 110 (75.9) | 35 (24.1) | 97 (66.9) | 48 (33.1) |
No | 685 (82.3) | 290 (42.3) | 395 (57.7) | 568 (82.9) | 117 (17.1) | 519 (75.8) | 166 (24.2) | |
Elevated systolic BP*** | Yes | 281 (33.8) | 115 (40.9) | 166 (59.1) | 229 (81.5) | 52 (18.5) | 202 (71.9) | 79 (28.1) |
No | 548 (65.9) | 234 (42.7) | 314 (57.3) | 447 (81.6) | 101 (18.4) | 412 (75.2) | 136 (24.8) | |
Elevated diastolic BP*** | Yes | 98 (11.8) | 37 (37.8) | 61 (62.2) | 77 (78.6) | 21 (21.4) | 69 (70.4) | 29 (29.6) |
No | 733 (88.1) | 312 (42.6) | 421 (57.4) | 601 (82.0) | 132 (18.0) | 546 (74.5) | 187 (25.5) | |
Elevated cholesterol*** | Yes | 173 (20.8) | 60 (34.7) | 113 (65.3) | 137 (79.2) | 36 (20.8) | 118 (68.2) | 55 (31.8) |
No | 621 (74.6) | 276 (44.4) | 345 (55.6) | 514 (82.8) | 107 (17.2) | 473 (76.2) | 148 (23.8) | |
Smoker | Smoker | 117 (14.1) | 48 (41.0) | 69 (59.0) | 85 (72.6) | 32 (27.4) | 79 (67.5) | 38 (32.5) |
Non-smoker | 685 (82.3) | 296 (43.2) | 389 (56.8) | 580 (84.7) | 105 (15.3) | 527 (76.9) | 158 (23.1) | |
BMI >25Â kg/m2 | Yes | 673 (80.9) | 278 (41.3) | 395 (58.7) | 551 (81.9) | 122 (18.1) | 493 (73.3) | 180 (26.7) |
No | 156 (18.6) | 70 (44.9) | 86 (55.1) | 126 (80.8) | 30 (19.2) | 121 (77.6) | 35 (22.4) | |
Study arm | Intervention | 400 (48.1) | 159 (39.8) | 241 (60.3) | 330 (82.5) | 70 (17.5) | 295 (73.8) | 105 (26.3) |
Control | 432 (51.9) | 190 (44.0) | 242 (56.0) | 349 (80.8) | 83 (19.2) | 321 (74.3) | 111 (25.7) | |
Marital status | Married/living with partner | 565 (67.9) | 250 (44.2) | 315 (55.8) | 471 (83.4) | 94 (16.6) | 427 (75.6) | 138 (24.4) |
Single/widowed/separated/divorced | 241 (28.9) | 92 (38.2) | 149 (61.8) | 200 (82.9) | 41 (17.1) | 180 (74.7) | 61 (25.3) | |
Age left school (years) | 14 and under | 337 (40.5) | 123 (36.5) | 214 (63.5) | 280 (83.1) | 57 (16.9) | 244 (72.4) | 93 (27.6) |
15 to 17 | 335 (40.3) | 147 (43.9) | 188 (56.1) | 279 (83.3) | 56 (16.7) | 257 (76.7) | 78 (23.3) | |
18 and over | 95 (11.4) | 48 (50.5) | 47 (49.5) | 82 (86.3) | 13 (13.7) | 78 (82.1) | 17 (17.9) | |
Occupation | Manual | 281 (33.8) | 110 (39.1) | 171 (60.9) | 227 (80.8) | 54 (19.2) | 200 (71.2) | 81 (28.8) |
Non manual | 325 (39.1) | 162 (49.8) | 163 (50.2) | 282 (86.8) | 43 (13.2) | 260 (80.0) | 65 (20.0) | |