BMI categories | P value | |||||||||
Healthy weight | Overweight | Obesity class I | Obesity class II/III | |||||||
Unweighted sample size, n (% in row) | 1146 (32.4) | 1363 (38.5) | 682 (19.3) | 348 (9.8) | ||||||
Weighted estimate, n (% in row) | 6 017 972 (38.4) | 5 738 449 (36.6) | 2 621 232 (16.7) | 1 291 057 (8.2) | ||||||
Characteristics | Unweighted | Weighted | Unweighted | Weighted | Unweighted | Weighted | Unweighted | Weighted | ||
Age | 18–34 years | 308 (50.1) | 2 710 882 (57.3) | 182 (30.1) | 1 284 683 (27.2) | 67 (11.1) | 414 589 (8.8) | 47 (7.8) | 318 662 (6.7) | <0.001 |
35–54 years | 447 (33.7) | 1 984 186 (34.3) | 507 (38.2) | 2 225 275 (38.5) | 244 (18.4) | 1 096 851 (19.0) | 128 (9.7) | 474 161 (8.2) | ||
55–64 years | 164 (24.6) | 622 376 (25.9) | 265 (39.7) | 965 537 (40.2) | 161 (24.1) | 558 111 (23.2) | 78 (11.7) | 256 358 (10.7) | ||
65+ years | 227 (24.1) | 700 528 (25.4) | 409 (43.5) | 1 262 955 (45.8) | 210 (22.3) | 551 680 (20.0) | 95 (10.1) | 241 877 (8.8) | ||
Sex | Male | 406 (25.1) | 2 620 359 (32.7) | 751 (46.4) | 3 418 301 (42.6) | 338 (20.9) | 1 456 868 (18.2) | 125 (7.7) | 526 133 (6.6) | <0.001 |
Female | 740 (38.6) | 3 397 612 (44.4) | 612 (31.9) | 2 320 148 (30.3) | 344 (17.9) | 1 164 364 (15.2) | 223 (11.6) | 764 924 (10.0) | ||
SEIFA | Lowest 20% | 174 (26.2) | 796 964 (28.1) | 244 (36.7) | 1 025 769 (36.1) | 152 (22.9) | 651 477 (22.9) | 95 (14.3) | 366 340 (12.9) | <0.001 |
Second quintile | 208 (29.6) | 1 016 623 (36.1) | 259 (36.9) | 956 324 (34.0) | 156 (22.2) | 552 293 (19.6) | 79 (11.3) | 288 335 (10.2) | ||
Third quintile | 231 (32.7) | 1 217 491 (38.5) | 286 (40.5) | 1 254 469 (39.6) | 120(17) | 420 226 (13.3) | 69 (9.8) | 272 488 (8.6) | ||
Fourth quintile | 219 (34.2) | 1 346 721 (45.0) | 249 (38.8) | 1 011 079 (33.8) | 133 (20.7) | 520 281 (17.4) | 40 (6.2) | 113 664 (3.8) | ||
Highest 20% | 314 (38.1) | 1 640 173 (42.5) | 325 (39.4) | 1 490 808 (38.6) | 121 (14.7) | 476 954 (12.4) | 65 (7.9) | 250 230 (6.5) | ||
Smoking status | Current smokers | 168 (34.9) | 792 677 (38.0) | 181 (37.6) | 807 140 (38.6) | 92 (19.1) | 341 930 (16.4) | 41 (8.5) | 146 948 (7.0) | <0.001 |
Ex-smokers | 338 (25.6) | 1 569 283 (29.7) | 535 (40.6) | 2 139 257 (40.5) | 290(22) | 1 017 186 (19.3) | 155 (11.8) | 555 042 (10.5) | ||
Never smoked | 640 (36.8) | 3 656 011 (44.1) | 647 (37.2) | 2 792 052 (33.6) | 300 (17.3) | 1 262 115 (15.2) | 152 (8.7) | 589 066 (7.1) | ||
Whether vegetable and fruit consumption met recommended guidelines | Met guidelines | 78 (34.8) | 288 728 (33.7) | 88 (39.3) | 341 284 (39.8) | 38(17) | 133 459 (15.6) | 20 (8.9) | 93 504 (10.9) | 0.721 |
Did not meet guidelines | 1068 (32.2) | 5 729 244 (38.7) | 1275 (38.5) | 5 397 166 (36.4) | 644 (19.4) | 2 487 773 (16.8) | 328 (9.9) | 1 197 554 (8.1) | ||
Whether physical activity last week met 150 min recommended guidelines | Met guidelines | 656 (35.7) | 3 500 112 (42.2) | 736 (40.1) | 3 102 867 (37.4) | 319 (17.4) | 1 215 836 (14.7) | 124 (6.8) | 476 383 (5.7) | <0.001 |
Did not meet guidelines | 485 (28.7) | 2 485 087 (34.1) | 620 (36.8) | 2 598 110 (35.7) | 359 (21.3) | 1 389 176 (19.1) | 223 (13.2) | 814 494 (11.2) | ||
Long-term health conditions | No condition | 950 (37.3) | 5 224 459 (43.0) | 969 (38.1) | 4 261 452 (35.0) | 432(17) | 1 856 933 (15.3) | 194 (7.6) | 817 782 (6.7) | <0.001 |
One condition | 132 (21.4) | 515 705 (23.0) | 261 (42.4) | 1 027 040 (45.9) | 141 (22.9) | 455 539 (20.4) | 82 (13.3) | 239 524 (10.7) | ||
Multiple conditions (≥2) | 64 (16.9) | 277 807 (21.9) | 133 (35.2) | 449 958 (35.4) | 109 (28.8) | 308 759 (24.3) | 72(19) | 233 751 (18.4) | ||
Iron supplement (mg) | No | 971 (32.1) | 5 024 207 (37.2) | 1163 (38.5) | 5 061 832 (37.5) | 596 (19.7) | 2 296 378 (17.0) | 292 (9.7) | 1 110 436 (8.2) | 0.361 |
Yes | 175 (33.8) | 993 764 (45.7) | 200 (38.7) | 676 617 (31.1) | 86 (16.6) | 324 854 (14.9) | 56 (10.8) | 180 621 (8.3) | ||
Vitamin B12 supplement (µg) | No | 934 (32.2) | 4 944 381 (37.7) | 1113 (38.3) | 4 870 612 (37.2) | 570 (19.6) | 2 210 994 (16.9) | 287 (9.9) | 1 071 969 (8.2) | 0.682 |
Yes | 212 (33.4) | 1 073 591 (41.8) | 250 (39.4) | 867 837 (33.8) | 112 (17.6) | 410 238 (16.0) | 61 (9.6) | 219 088 (8.5) | ||
Total energy intake (KJ)*† | 9518.8 (3187.8) | 9994.6 | 9625.5 (3097) | 9797.1 | 9798.4 (3273.1) | 9877.3 | 9921.8 (3129.3) | 10 344.8 | 0.505 |
Overweight, BMI 25.0-29.9 kg/m2; obesity class I, BMI 30.0-34.9 kg/m2; obesity class II/III, BMI ≥35 kg/m2
*Total energy intake (KJ)—mean (SD) for unweighted; mean for weighted estimates.
†Total energy intake (KJ)—plausible energy reporters.53
BMI, body mass index; NNPAS, National Nutrition and Physical Activity Survey; SEIFA, Socio-Economic Indexes for Areas --Quintiles.