Development and Validation of a Questionnaire to Assess Multimorbidity in Primary Care: An Indian Experience

Table 4

Interobserver reliability (Cohen’s Kappa statistics).

Theoretical construct and facets	Observer 1; Mean [SD]	Observer 2; Mean [SD]	Kappa	Strength of agreement
Chronic conditions
Diseases and other health problems	1.61 [0.86]	1.61 [0.86]	1	Nearly perfect agreement
Depression	1.92 [0.88]	1.83 [0.83]	0.784	Moderate agreement
Health care utilization
Frequency of hospital visits in last one year	0.98 [1.46]	0.97 [1.39]	0.921	Substantial agreement
Frequency of inpatient admission in last one year	0.30 [0.61]	0.35 [0.76]	0.874	Substantial agreement
Number of medicines taken	0.46 [0.79]	0.39 [0.68]	0.851	Substantial agreement
Health related quality of life
Self-rated overall health	3.53 [0.68]	3.87 [0.75]	0.812	Substantial agreement
SF-12 mental component score	44.25 [9.64]	45.27 [8.67]	0.791	Moderate agreement
SF-12 physical component score	43.57 [4.72]	43.91 [5.13]	0.786	Moderate agreement
Severity
Limitation in activities due to health problems	7.00 [5.93]	7.12 [6.15]	0.831	Substantial agreement
Multimorbidity
Multimorbidity (≥2 chronic conditions)%	13.16	13.16	1	<0.001