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Table 4 Weighted logistic regression of SMS on decreasing missed doses

From: Effects of and satisfaction with short message service reminders for patient medication adherence: a randomized controlled study

Variable OR   95% CI P-value
After SMS intervention
   No (reference)      
   Yes 2.2 ** 1.9 2.6 < .001
Socioeconomic status
Gender      
   Male (reference)      
   Female 2.1 ** 1.8 2.6 < .001
Age (years)      
   20~34 (reference)      
   35~49 0.7 * 0.5 1.0 0.024
   50~64 0.7 * 0.5 0.9 0.014
    65 0.6 ** 0.4 0.9 0.009
Education level      
   Elementary or less (reference)
   Junior High School 1.3   0.8 2.0 0.244
   High School 0.7   0.5 1.1 0.138
College 0.7   0.5 1.1 0.100
   University 0.7   0.4 1.0 0.058
   Graduate school or above 0.6 * 0.4 1.0 0.034
Occupation      
   Unemployed (reference)
   Military 0.1 ** 0.0 0.3 < .001
   Civil servant 0.4 ** 0.2 0.6 < .001
   Teacher 0.4 ** 0.2 0.7 < .001
   Student 0.5 ** 0.3 0.8 0.005
   Housekeeper 0.7   0.4 1.0 0.062
   Self-employed 0.7   0.5 1.1 0.136
   Medicine 0.7   0.4 1.3 0.277
   Retired 0.7   0.5 1.1 0.164
   Freelancer 0.9   0.6 1.5 0.711
   Services 0.9   0.6 1.4 0.753
   Worker 1.3   0.8 2.0 0.278
   A.F.F.H. 2.3   0.7 7.9 0.190
   Other 1.1   0.6 2.1 0.868
Average monthly household income
    30,000 NTD(reference)
   30,001-60,000 NTD 1.2   1.0 1.5 0.099
   60,001-90,000 NTD 1.5 ** 1.1 1.9 0.006
   90,001-120,000 NTD 1.1   0.8 1.5 0.668
   120,001-150,000 NTD 2.2 ** 1.5 3.2 < .001
    150,001 NTD 4.8 ** 3.4 6.8 < .001
Marital status      
   Single (reference)      
   Married 1.4   1.0 1.9 0.065
   Divorced/Separated 0.4 ** 0.3 0.6 < .001
   Widowed 1.7   1.0 2.9 0.054
Living status      
   Live with spouse only (reference)      
   Medical history 0.7   0.5 1.1 0.093
   Live with spouse and children 1.4 * 1.1 1.8 0.013
   Live alone 1.4   0.9 2.1 0.118
   Other 0.6 ** 0.4 0.8 0.004
Medical history      
   Heart disease 0.4 ** 0.3 0.5 < .001
   Hypertension 0.4 ** 0.4 0.5 < .001
   Dialysis 0.5   0.2 1.0 0.051
   Stroke 0.6 ** 0.4 0.8 0.002
   Peptic ulcer 0.7 * 0.5 0.9 0.014
   Thyroid disease 0.7 * 0.5 1.0 0.028
   Chronic kidney disease 0.7   0.4 1.3 0.252
   Hyperlipidemia 0.8   0.5 1.1 0.186
   Diabetes 0.9   0.7 1.1 0.354
   Gynecology disease 1.0   0.5 2.2 0.965
   Asthma/Emphysema 1.0   0.6 1.8 0.917
   Urinary disease 1.0   0.5 2.2 0.910
   Cancer 1.1   0.4 3.3 0.893
   Chronic liver disease 1.4   0.9 2.0 0.111
   Gout 1.5   0.9 2.3 0.089
   Pneumonia 1.9   0.7 5.2 0.185
   Mental or psychiatric disease 2.2 ** 1.3 3.8 0.003
   Others 0.5 ** 0.4 0.6 < .001
  1. N = 1,198; Dependent variable: 1 indicates with complete improvement; 0 indicates without complete improvement. Medical history reference group is the participants without this disease. The patients with immunity disease had no decrease on missed doses; A.F.F.H: agricultural, forestry, fishery or husbandry. * p < 0.05; ** p < 0.01.