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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Am J Health Behav. 2014 Jan;38(1):53–62. doi: 10.5993/AJHB.38.1.6

Table 2. Medication Adherence Estimates from Quantile Regression Models (Adjusted)*.

25th 50th 75th
Adjusted p-value Adjusted p-value Adjusted p-value
Adherence to Anti-diabetic Medications (N = 112,897 observations for
43,445 patients)
Age <35 22.9% < .001 47.3% < .001 75.3% < .001
Age 35-49 36.6% < .001 65.6% < .001 86.9% < .001
Age 50-64 52.6% Ref 77.6% Ref 91.6% Ref
Age 65+ 55.5% < .001 79.3% < .001 92.3% < .001
Female 49.0% < .001 73.9% < .001 89.8% < .001
Male 51.0% Ref 76.1% Ref 91.0% Ref
Honolulu 51.8% < .001 76.8% < .001 91.0% .02
Other regions 48.9% Ref 74.3% Ref 90.1% Ref
High morbidity 50.6% < .001 75.7% < .001 90.7% < .001
Low morbidity 49.5% Ref 74.8% Ref 90.3% Ref
Coronary artery disease 53.1% .4 77.3% 1.0 91.5% .4
Congestive heart failure 50.4% < .001 74.9% < .001 90.6% < .001
White 56.9% Ref 79.6% Ref 92.4% Ref
Japanese 57.6% .5 81.2% < .001 92.9% .07
Chinese 56.0% .2 80.0% 1.0 92.4% 1.0
Filipino 50.7% < .001 76.9% < .001 90.8% .002
Native Hawaiian 50.4% < .001 74.1% < .001 90.2% < .001
Other Pacific Islander 42.0% < .001 69.2% < .001 90.2% .001
Other race 55.7% .2 78.3% .1 91.8% .2

Adherence to Lipid-Lowering Medications (N = 82,477 observations
for 30,801 patients)
Age <35 18.1% < .001 38.8% < .001 69.4% < .001
Age 35-49 31.5% < .001 60.1% < .001 83.4% < .001
Age 50-64 46.5% Ref 72.9% Ref 88.3% Ref
Age 65+ 50.1% < .001 75.1% < .001 89.8% < .001
Female 42.3% < .001 68.1% < .001 86.4% < .001
Male 45.9% Ref 71.8% Ref 88.1% Ref
Honolulu 46.2% < .001 72.2% < .001 88.3% < .001
Other regions 43.2% Ref 69.1% Ref 86.9% Ref
High morbidity 44.9% .1 70.2% .3 87.3% .7
Low morbidity 43.9% Ref 70.0% Ref 87.3% Ref
Coronary artery disease 48.3% .02 73.6% < .001 89.0% .001
Congestive heart failure 45.7% .005 70.8% .003 88.1% .03
White 53.7% Ref 76.9% Ref 89.7% Ref
Japanese 54.4% .5 77.9% .09 90.5% .008
Chinese 51.1% .004 75.8% .046 89.9% .7
Filipino 42.1% < .001 69.5% < .001 87.4% < .001
Native Hawaiian 43.1% < .001 68.0% < .001 86.4% < .001
Other Pacific Islander 30.8% < .001 57.0% < .001 82.6% .005
Other race 47.1% < .001 72.2% < .001 88.4% .004

Adherence to Anti-hypertensive Medications (N =87,969 observations
for 33,443 patients)
Age <35 24.2% < .001 48.2% < .001 75.7% < .001
Age 35-49 43.0% < .001 71.6% < .001 89.2% < .001
Age 50-64 59.7% Ref 82.0% < .001 92.9% < .001
Age 65+ 64.3% < .001 84.8% < .001 94.5% < .001
Female 56.4% .002 79.3% < .001 91.8% < .001
Male 57.9% Ref 80.6% Ref 92.6% Ref
Honolulu 58.7% .06 81.1% .008 92.7% .04
Other regions 56.5% Ref 79.4% Ref 92.0% Ref
High morbidity 58.7% .01 81.0% < .001 92.9% < .001
Low morbidity 56.5% Ref 79.5% Ref 91.9% Ref
Coronary Artery Disease 64.0% < .001 84.5% < .001 94.5% < .001
Congestive Heart Failure 63.7% < .001 84.3% < .001 94.8% < .001
White 64.9% Ref 84.1% Ref 93.8% Ref
Japanese 64.6% .7 84.7% .09 94.3% .008
Chinese 62.8% .006 83.5% .1 93.8% .4
Filipino 59.2% < .001 82.0% .006 93.0% .009
Native Hawaiian 57.7% < .001 79.5% < .001 92.2% < .001
Other Pacific Islander 46.9% .001 73.8% < .001 89.5% .01
Other Race 62.3% .02 83.1% .01 93.7% .3

Note.

*

Adjusted for all other variables in the model and year (not shown).