Table II.

Multivariate analysis of predictors for prediabetes and score assigned in the development of INA-PRISC

				95% CI
Risk factors	B (coefficient β)	p value	OR (Exp B)	Min	Max	Score assigned*
Intercept	−1.257
1. Age
>55 years	0.873	<0.001	2.393	2.108	2.716	9
46–55 years	0.735	<0.001	2.085	1.846	2.353	7
36–45 years	0.459	<0.001	1.582	1.409	1.777	5
26–35 years	0.074	0.225	1.077	0.955	1.215	1
19–25 years			Reference			0
2. Sex
Male	0.083	0.048	1.087	1.001	1.181	1
Female			Reference			0
3. Education level
Uneducation (never been to school/not completed primary school)	0.267	<0.001	1.306	1.207	1.413	3
Low education (primary school certificate)	0.065	0.057	1.067	0.998	1.141	1
High education (high school and above)			Reference			0
4. Diabetes history in first degree
Yes	0.314	0.017	1.369	1.057	1.774	3
No/unknown			Reference			0
5. Smoking habit
Yes	0.227	<0.001	1.255	1.151	1.368	2
No			Reference			0
6. Moderate physical activity
No or <150 min/week	0.094	0.030	1.098	1.009	1.196	1
≥150 min/week			Reference			0
7. BMI for Asian population
≥25 (obese)	0.226	<0.001	1.253	1.171	1.341	2
23–24.9 (overweight)	0.066	0.103	1.069	0.987	1.157	1
18.5–22.9 (normal)			Reference
8. Hypertension					`
SBP ≥160 mmHg or DBP ≥100 mmHg	0.251	<0.001	1.285	1.152	1.434	3
SBP 140–159 mmHg or DBP 90–99 mmHg	0.191	<0.001	1.211	1.105	1.326	2
SBP 120–139 mmHg or DBP 80–89 mmHg	0.167	<0.001	1.182	1.107	1.262	2
SBP 120 mmHg and DBP 80 mmHg			Reference

Based on the final regression model in the development data set, Indonesian National Basic Health Survey 2013 [n = 21.720; AUC = 0.623 (95% CI 0.616–0.631); Hosmer–Lemeshow test, p < 0.001]

^*Beta coefficients were multiplied by 10 and rounded to the nearest integer to derive scores