Table 3. Comparison Between the High Awareness and the Low Awareness Group: Cosine Similarity Was Used to Stratify Each Group Based on the Mean Cosine Similarity.
| Group with low awareness of negative cosine similarity |
Group with high awareness of positive cosine similarity |
|||||
|---|---|---|---|---|---|---|
| Small cosine similarity group | Large cosine similarity group | P value | Small cosine similarity group | Large cosine similarity group | P value | |
| Number of patients (male/female) | 16 (14/2) | 9 (5/4) | 0.142 | 12 (11/1) | 14 (6/8) | 0.014* |
| Age (years) | 80.0 (62 - 88) | 80.0 (63 - 90) | 0.777 | 73.0 (59 - 92) | 80.5 (65 - 95) | 0.135 |
| Body mass index (kg/m2) | 19.7 (15.2 - 25.8) | 20.9 (14.4 - 26.1) | 0.821 | 20.3 (13.2 - 29.2) | 20.5 (13.4 - 31.8) | 0.662 |
| Alb (g/dL) | 3.4 (2.0 - 4.1) | 3.5 (2.0 - 4.7) | 0.332 | 3.4 (2.4 - 4.1) | 3.1 (2.4 - 4.1) | 0.245 |
| Cosine similarity | -0.84 (-0.98 - -0.76) | -0.49 (-0.69 - -0.16) | < 0.001*** | 0.41 (0.14 - 0.62) | 0.90 (0.65 - 1.00) | < 0.001*** |
| Type of hospital meal (a normal diet or special therapeutic diet) (normal/special) | 16 (7/9) | 9 (0/9) | 0.027* | 12 (5/7) | 14 (3/11) | 0.401 |
| Intake (staple food) | 1.00 (0.93 - 1.00) | 1.00 (0.58 - 1.00) | 0.199 | 1.00 (0.66 - 1.00) | 0.99 (0.40 - 1.00) | 0.053 |
| Intake (side dish) | 1.00 (0.86 - 1.00) | 0.96 (0.66 - 1.00) | 0.096 | 1.00 (0.81 - 1.00) | 0.98 (0.54 - 1.00) | 0.074 |
Intake is defined as 1.00 when the whole meal is eaten. Inside is quartile. *P < 0.05 (Chi-squared test). ***P < 0.001 (Welch’s t test). Alb: serum albumin.