Skip to main content

Table 3 Patient-Caregiver Concordance for SymTrak Scale

From: Agreement between older adult patient and caregiver proxy symptom reports

Item #a SymTrak Items Dyads Item mean (SD) Spearman Correlationb Weighted Kappac
N Patients Caregivers   Quadraticd Linear
  Moderate agreement
11 Trouble with hearing 186 0.9 (1.0) 0.8 (1.1) 0.54 0.56 0.39
4 Pain in the back, arms, legs, or joints 187 1.6 (1.1) 1.5 (1.1) 0.54 0.53 0.40
8 Shortness of breath 187 0.8 (0.9) 0.8 (0.9) 0.53 0.53 0.43
12 Trouble walking or trouble moving around 186 1.2 (1.0) 1.3 (1.1) 0.51 0.49 0.39
10 Trouble with vision 187 0.9 (1.0) 0.8 (1.0) 0.40 0.46 0.32
3 Pain interfering with daily activities 187 1.2 (1.1) 1.3 (1.0) 0.44 0.42 0.30
6 Constipation or stomach problems 186 0.7 (0.8) 0.8 (0.8) 0.39 0.41 0.31
9 Chest pain 187 0.3 (0.6) 0.3 (0.6) 0.45 0.41 0.39
  Fair agreement
1 Feeling tired or having low energy 187 1.3 (0.9) 1.4 (0.9) 0.37 0.35 0.27
5 Foot pain or foot numbness 186 1.0 (1.0) 0.8 (1.0) 0.37 0.34 0.26
16 Poor appetite or overeating 187 0.7 (0.8) 0.7 (0.9) 0.34 0.33 0.24
2 Trouble falling asleep or trouble staying asleep 187 1.0 (0.9) 0.9 (0.9) 0.29 0.30 0.21
15 Feeling sad, down, or depressed 187 0.5 (0.7) 0.7 (0.8) 0.35 0.29 0.26
17 Feeling nervous or anxious 187 0.6 (0.7) 0.7 (0.8) 0.22 0.29 0.20
23 Memory loss 187 0.7 (0.7) 0.7 (0.8) 0.27 0.28 0.21
18 Worrying too much about different things 188 0.8 (0.9) 1.0 (1.0) 0.26 0.25 0.20
21 Trouble remembering appointments 187 0.4 (0.6) 0.6 (0.8) 0.21 0.25 0.16
13 Falling or tripping 186 0.3 (0.5) 0.4 (0.6) 0.29 0.24 0.24
  Slight agreement
19 Becoming easily annoyed or irritable 186 0.6 (0.7) 0.8 (0.8) 0.18 0.18 0.14
14 Less interest or less pleasure in doing things 187 0.7 (0.8) 0.8 (0.9) 0.16 0.17 0.08
22 Trouble concentrating on things 187 0.6 (0.7) 0.6 (0.7) 0.13 0.16 0.09
7 Trouble with urination 185 0.5 (0.8) 0.5 (0.8) 0.13 0.07 0.08
20 Trouble taking medications in the right dose at the right time 187 0.3 (0.6) 0.4 (0.6) 0.13 0.07 0.09
  SymTrak scale scored 188 17.5 (9.5) 18.1 (10.1) 0.49 0.48 (0.38–0.57)
  1. aItems are ordered in table from highest to lowest quadratic weighted kappa
  2. bMost Spearman correlations are highly significant (p < .0001) except for items only significant at p < .05 (items 14, 17, 18, 19, 21) or those not significant (items 7, 20, 22)
  3. cAll weighted kappa values are significant (i.e., 95% CI does not include 0) except for items 7 and 20 (quadratic and linear), as well as items 14 and 22 (linear only)
  4. dFor SymTrak scale score, the value under the weighted kappa column is the Intraclass Correlation Coefficient (ICC) with 95% CI, calculated using the absolute agreement version of the ICC and specifying rater (patient vs their caregiver) as a fixed effect