Chronic morbidity and reported disability among older persons from the India Human Development Survey

BMC Geriatrics

Table 2 Disability prevalence expressed as Katz score in ADL (in %) in population aged 60 and above by demographic and socioeconomic characteristics, India, 2011–2012

Characteristics	N	Kz score = 0	Kz score = 1 or 2	Kz score = 3
Chronic morbidity
High BP
No	19,421	5.16	15.08	79.77
Yes	2504	10.58	26.8	62.62
Heart diseases
No	21,318	5.68	16.13	78.19
Yes	607	9.03	26.46	64.51
Diabetes
No	20,467	5.45	15.77	78.78
Yes	1458	10.34	25.47	64.18
Sex
Male	10,636	4.43	13.5	82.07
Female	11,289	7.04	19.16	73.79
Age
60–64	7389	2.40	10.62	86.98
65–69	5802	3.71	14.55	81.74
70–74	3916	6.20	19.35	74.44
75–79	2254	8.21	23	68.8
80+	2563	17.37	27.11	55.51
Place of residence
Rural	15,442	5.71	16.98	77.31
Urban	6483	5.92	15.09	79
Marital status
Currently married	13,213	3.77	13.43	82.81
Never married	222	4.71	18.53	76.76
Other	8490	8.93	21.02	70.05
Religion
Hindu	18,410	5.71	16.52	77.77
Muslim	2133	6.82	14.69	78.49
Other	1382	5.02	17.77	77.21
Caste
SC	4238	5.65	16.17	78.18
ST	1400	4.11	11.36	84.53
Other	16,227	5.95	16.93	77.12
Wealth
Q1	6301	6.17	18.66	75.17
Q2	4088	6.68	14.91	78.41
Q3	3755	5.58	16.76	77.66
Q4	3977	5.06	14.71	80.22
Q5	3804	5.09	15.77	79.14
Education
No education	12,921	6.59	18	75.41
Primary	3829	5.31	16.14	78.55
Secondary	3683	4.56	13.32	82.12
Higher	1449	2.95	10.66	86.39
Total	21,926	5.45	16.88	77.67

Disability prevalence is measured by Katz score (Kz score) which is constructed using the Katz Index of Independence in ADL with three categories, specifically: Disability in three ADLs: Kz score = 0; Disability in 1 or 2 ADLs: Kz score = 1 or 2; Fully functional ADL: Kz score = 3. Functional independence increases with higher Kz score

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