Table 7

Comparisons of the RP values of the two scoring methods for discriminating between groups differing in disability severity levels across medical conditions

ScoringDiagnosedNon-diagnosedMean differenceFRP
Heart attack
 n788848 595
 Summative4.50 (0.16)2.37 (0.05)2.13 (0.17)15 7621
 Interval23.76 (0.59)13.99 (0.19)9.77 (0.63)233.831.48
Hypertension
 n22 53233 951
 Summative3.20 (0.07)2.29 (0.05)0.90 (0.09)90.731
 Interval18.31 (0.31)13.30 (0.23)5.00 (0.39)157.241.73
Cholesterol
 n13 21043 273
 Summative3.12 (0.09)2.47 (0.04)0.64 (0.11)35.591
 Interval17.88 (0.40)14.31 (0.21)3.57 (0.45)61.071.71
Stroke
 n249053 993
 Summative7.53 (0.36)2.46 (0.04)5.06 (0.37)183.991
 Interval35.01 (1.24)14.50 (0.18)20.51 (1.26)261.881.43
Diabetes
 n716949 314
 Summative4.23 (0.14)2.38 (0.04)1.85 (0.15)148.601
 Interval22.61 (0.55)14.01 (0.20)8.59 (0.59)207.011.39
Lung disease
 n375152 732
 Summative4.47 (0.18)2.50 (0.04)1.97 (0.19)102.311
 Interval24.45 (0.72)14.51 (0.19)9.93 (0.75)170.661.67
Asthma
 n40356 080
 Summative4.01 (0.25)2.63 (0.04)1.38 (0.25)29.141
 Interval23.13 (1.09)15.17 (0.18)7.86 (1.10)50.231.72
Arthritis
 n13 94642 537
 Summative4.16 (0.09)2.02 (0.05)2.14 (0.11)385.231
 Interval23.37 (0.36)11.90 (0.21)11.47 (0.44)676.291.75
Osteoporosis
 n74355 740
 Summative3.24 (0.18)2.63 (0.04)0.60 (0.19)9.871
 Interval18.85 (0.76)15.17 (0.18)3.68 (0.79)21.322.16
Cancer
 n303653 447
 Summative3.78 (0.22)2.57 (0.04)1.20 (0.22)28.481
 Interval21.05 (0.89)14.89 (0.19)6.15 (0.92)44.731.57
Stomach ulcer
 n327253 211
 Summative4.58 (0.24)2.54 (0.04)2.04 (0.25)66.771
 Interval24.71 (0.95)14.73 (0.18)9.98 (0.97)105.331.58
Parkinson
 n40956 074
 Summative9.82 (0.82)2.58 (0.04)7.23 (0.82)77.601
 Interval42.97 (2.81)14.98) (0.18)27.99 (2.82)98.311.27
Cataracts
 n487651 607
 Summative3.76 (0.20)2.52 (0.04)1.23 (0.21)33.541
 Interval20.31 (0.79)14.67 (0.19)5.64 (083)45.241.35
Hip fracture
 n136455 119
 Summative6.37 (0.38)2.54 (0.04)3.82 (0.38)97.911
 Interval30.09 (1.33)14.83 (0.18)15.26 (1.36)125.871.28
Alzheimer
 n76555 718
 Summative10.89 (0.53)2.49 (0.04)8.40 (0.53)245.651
 Interval45.82 (1.90)14.66 (0.18)31.15 (1.92)273.471.11
Benign tumour
 n22156 282
 Summative2.90 (0.25)2.63 (0.04)0.23 (0.25)1.031
 Interval17.04 (1.24)15.19 (0.18)1.84 (1.25)2.152.08
  • p<0.001 in all cases, except for osteoporosis (p=0.002) and benign tumour (p=NS).

  • Values expressed in means and SE. Wald F test was used to compare groups. Age and gender were entered as covariates.

  • NS, not significant; RP, relative precision.