Five-year effectiveness of short messaging service (SMS) for pre-diabetes

BMC Research Notes

Table 2 Number and incidence rate of DM events and hazard ratios of SMS intervention

	Intervention group (N = 54)				Control group (N = 50)				Hazard ratio	95% CI	p-value	p-value for interaction
Event of DM	Cumulative incidence		Incidence rate (cases/100 person-year)		Cumulative incidence		Incidence rate (cases/100 person-year)
Sub-group	Cases with event	Rate (%)	Estimate	Person-year	Cases with event	Rate (%)	Estimate	Person-year
Overall	20	37.04	8.06	248	16	32.00	7.31	219	1.184	(0.612, 2.288)	0.616
Age, year												0.638
≥ 65	1	33.33	7.69	13	1	33.33	5.26	19	NA	NA	NA
< 65	19	37.25	8.09	235	15	31.91	7.50	200	1.131	(0.574, 2.229)	0.723
Gender												0.905
Male	17	34.69	7.46	228	16	33.33	7.73	207	1.035	(0.522, 2.052)	0.922
Female	3	60.00	15.00	20	0	0.00	0.00	12	NA	NA	NA
Working shift based												0.996
Yes	5	41.67	10.20	49	4	28.57	5.71	70	2.221	(0.564, 8.745)	0.254
No	15	35.71	7.54	199	12	33.33	8.05	149	0.963	(0.451, 2.059)	0.923
Regular exercise												0.692
Yes	4	26.67	5.88	68	5	25.00	5.49	91	1.102	(0.296, 4.112)	0.885
No	16	41.03	8.84	181	11	36.67	8.59	128	1.114	(0.516, 2.407)	0.784
Family history of DM												0.415
Yes	11	37.93	8.46	130	13	38.24	8.55	152	1.058	(0.473, 2.365)	0.891
No	9	36.00	7.56	119	3	18.75	4.48	67	1.939	(0.522, 7.205)	0.323
History of high blood pressure												0.378
Yes	4	50.00	11.76	34	2	18.18	5.00	40	2.287	(0.417, 12.54)	0.341
No	16	34.78	7.48	214	14	35.90	7.82	179	1.037	(0.505, 2.131)	0.921
BMI, kg/m²												0.257
≥ 25	12	42.86	9.16	131	11	36.67	9.24	119	1.022	(0.450, 2.318)	0.959
< 25	8	30.77	6.84	117	5	25.00	5.00	100	1.476	(0.481, 4.531)	0.496

DM diabetes mellitus, BMI body mass index, CI confidence interval, NA not applicable

ISSN: 1756-0500