Table 3. Correlation of demographic characteristics and KAP of T2DM patients with CKD (n=225).

Variable categories	N	Knowledge			Attitude			Practice
		Mean	SD (±)	p-value	Mean	SD (±)	p-value	Mean	SD (±)	p-value
Age (years)				0.07 *			0.13 ***			0.72 **
30–45	18	23.9	2.11		23.4	2.06		7.0	2.09
46–60	118	23.8	3.31		23.3	2.67		7.3	2.01
61–70	75	22.8	2.95		22.9	2.96		7.1	2.11
>70	14	21.6	4.50		21.8	2.39		6.6	1.95
Gender				0.91 **			0.53 ***			0.73 **
Male	110	23.4	3.19		23.1	2.75		7.2	2.15
Female	115	23.3	3.32		23.2	2.72		7.1	1.93
Ethnicity				0.85 ***			0.002 ***			0.001 **
I-Taukei	110	23.3	3.18		23.7	2.69		6.7	2.15
FID	109	23.4	3.34		22.5	2.70		7.6	1.82
FoD	6	23.3	3.27		23.8	0.98		6.0	1.67
Level of education				<0.001 ***			0.53 ***			0.25 **
Uneducated	10	23.5	2.80		23.6	2.76		6.8	2.82
Primary	75	22.2	3.52		22.9	3.13		6.8	2.12
Secondary	108	23.5	2.92		23.1	2.58		7.3	1.91
University	32	25.3	2.81		23.6	2.19		7.5	2.00
Employment status				0.05 ***			0.88 ***			0.61 **
Unemployed	72	24.1	3.38		23.2	2.78		7.1	2.02
Employed	86	23.1	2.86		23.2	2.58		7.0	2.19
Domestic duties	67	22.7	3.44		22.9	2.87		7.3	1.86
Marital status				0.86 ***			0.85 ***			0.18 **
Single	16	23.8	3.56		23.2	1.80		7.5	1.75
Married	181	23.4	3.06		23.1	2.84		7.2	2.00
Divorced and Widow	28	23.3	3.25		23.1	2.44		7.1	2.35
Average monthly income				0.03 *			0.17 ***			0.82 **
<$400	151	22.9	3.33		22.9	2.78		7.1	2.12
$401–$1200	58	24.2	3.01		23.6	2.73		7.1	1.88
>$1201	16	24.2	2.59		23.6	1.89		7.4	1.97

*Kruskal-Wallis test. **Parametric test. ***Non-parametric test.