Table 4. Most frequently co-occuring pairs of conditions and their observed and expected prevalences.

	Observed	Expected	Ratio observed/expected	Crude OR [99.58% CI]	p-value	Adjusted OR [99.58% CI]*	p-value#
Hypertension and eye diseases	23.80	22.64	1.05	1.21 [1.01–1.46]	0.003	1.04 [0.84–1.28]	0.632
Hypertension and heart diseases	18.39	15.58	1.18	1.86 [1.50–2.30]	<.001	1.67 [1.32–2.11]	<.001
Hypertension and diabetes	13.68	10.11	1.35	3.20 [2.41–4.25]	<.001	2.95 [2.19–3.96]	<.001
Hypertension and joint diseases	10.08	9.70	1.04	1.13 [0.88–1.44]	0.160	1.00 [0.77–1.30]	0.992
Eye diseases and diabetes	8.11	6.62	1.22	1.53 [1.20–1.94]	<.001	1.36 [1.04–1.77]	0.001
Eye and joint diseases	7.57	6.35	1.19	1.45 [1.14–1.85]	<.001	1.25 [0.96–1.63]	0.018
Hypertension and lung diseases	6.78	6.23	1.09	1.28 [0.95–1.73]	0.020	1.13 [0.82–1.57]	0.268
Heart diseases and diabetes	6.39	4.56	1.40	1.84 [1.43–2.36]	<.001	1.46 [1.11–1.92]	<.001
Eye and lung diseases	5.43	4.08	1.33	1.81 [1.35–2.42]	<.001	1.65 [1.20–2.28]	<.001
Hypertension and stroke	5.32	4.12	1.29	2.39 [1.59–3.59]	<.001	2.00 [1.26–3.16]	<.001
Heart diseases and joint diseases	5.31	4.37	1.21	1.40 [1.08–1.82]	0.002	1.24 [0.93–1.64]	0.034
Hypertension and gastrointestinal diseases	5.30	4.70	1.13	1.07 [0.77–1.47]	0.562	0.93 [0.66–1.31]	0.530

Results from logistic regression models testing the association between pairs of conditions.

*Odds ratios (OR) were adjusted for age, sex and all other diseases.