Table 2 Comparisons of pattern of body mass index, fat mass, waist, WHR and abdominal fat trajectories according to cognitive impairment and cognitive decline
Variables | Cognitive impairment n (%) |  | Cognitive decline (> 75 Pctl) n (%) |  | ||
|---|---|---|---|---|---|---|
No (n = 458) | Yes (n = 168) | p value | No (n = 470) | Yes (n = 156) | p value | |
BMI trajectories | Â | Â | 0.13 | Â | Â | 0.78 |
 Cluster 1: very low level with inverse U-shaped trend group | 61 (63.54) | 35 (36.46) |  | 69 (71.88) | 27 (28.13) |  |
 Cluster 2: consistently low-level group | 163 (74.43) | 56 (25.57) |  | 167 (76.26) | 52 (23.74) |  |
 Cluster 3: median level with flat U-shaped trend group | 160 (74.42) | 55 (25.58) |  | 164 (76.28) | 51 (23.72) |  |
 Cluster 4: high-level group | 74 (77.08) | 22 (22.92) |  | 70 (72.92) | 26 (27.08) |  |
Fat mass trajectories | Â | Â | 0.008 | Â | Â | 0.26 |
 Cluster 1: consistently low-level group | 41 (59.42) | 28 (40.58) |  | 54 (78.26) | 15 (21.74) |  |
 Cluster 2: consistently high-level group | 148 (80.43) | 36 (19.57) |  | 144 (78.26) | 40 (21.74) |  |
 Cluster 3: elevated with median level group | 130 (72.63) | 49 (27.37) |  | 125 (69.83) | 54 (30.17) |  |
 Cluster 4: flat U-shaped in median level group | 139 (71.65) | 55 (28.35) |  | 147 (75.77) | 47 (24.23) |  |
WC trajectories | Â | Â | 0.46 | Â | Â | 0.31 |
 Cluster 1: low level with slightly increasing group | 98 (71.53) | 39 (28.47) |  | 105 (76.64) | 32 (23.36) |  |
 Cluster 2: high level with flat inverse U-shaped group | 117 (74.05) | 41 (25.95) |  | 110 (69.62) | 48 (30.38) |  |
 Cluster 3: high level with flat U-shaped group | 152 (70.7) | 63 (29.30) |  | 164 (76.28) | 51 (23.72) |  |
 Cluster 4: low level with flat inverse U-shaped group | 91 (78.45) | 25 (21.55) |  | 91 (78.45) | 25 (21.55) |  |
WHR trajectories | Â | Â | 0.09 | Â | Â | 0.03 |
 Cluster 1: high level with increasing trend group | 186 (68.13) | 87 (31.87) |  | 200 (73.26) | 73 (26.74) |  |
 Cluster 2: low level with slightly increasing trend group | 161 (77.78) | 46 (22.22) |  | 169 (81.64) | 38 (18.36) |  |
 Cluster 3: high level with increasing-decreasing trend group | 48 (75.00) | 16 (25.00) |  | 42 (65.63) | 22 (34.38) |  |
 Cluster 4: high level with U-shaped group | 63 (76.83) | 19 (23.17) |  | 59 (71.95) | 23 (28.05) |  |
Abdominal fat trajectories |  |  | < 0.001 |  |  | 0.51 |
 Cluster 1: low with flat inverse U-shaped group | 97 (61.39) | 61 (38.61) |  | 117 (74.05) | 41 (25.95) |  |
 Cluster 2: median with flat inverse U-shaped group | 138 (75.41) | 45 (24.59) |  | 132 (72.13) | 51 (27.87) |  |
 Cluster 3: consistently high-level group | 175 (80.28) | 43 (19.72) |  | 167 (76.61) | 51 (23.39) |  |
 Cluster 4: low with flat U-shaped group | 48 (71.64) | 19 (28.36) |  | 54 (80.60) | 13 (19.40) |  |