Variables NMPD user (N=3.583) Non-NMPD user (N=32.933)
Health Services Utilization (past year)
Any ER Visit (%) *** 40.46 29.34
Any Inpatient Hospital Night (%) *** 10.24 9.27
Number of ER Visits *** 0.864 (1.890) 0.576 (1.513)
Number of Inpatient Hospital Nights *** 0.474 (2.421) 0.399 (2.072)
Socio-Demographics and Economic Variables
Male (%) *** 51.21 46.03
Age 18-20 (%) *** 28.80 18.77
Age 21-25 (%) *** 41.69 28.68
Age 26-34 (%) 13.73 14.88
Age 35-older (%) *** 15.76 37.66
Married (%) *** 17.44 37.82
Widowed, divorced, or separated (%) *** 7.92 11.65
Never married (%) *** 74.63 50.51
White (%) *** 74.32 63.10
African-American (%) *** 7.34 12.64
Hispanic (%) *** 10.94 15.75
Asian (%) *** 1.81 4.03
Other race (%) *** 5.58 4.45
Less than high-school education (%) *** 18.55 15.80
High-school education (%) *** 33.68 32.62
Some college education (%) *** 32.15 29.27
College graduate (%) *** 15.60 22.29
Unemployed (%) *** 14.93 9.34
Not in the labor force (%) *** 20.34 23.28
Family income *** 44,625 (33,694) 49,784 (33,686)
Health insurance (%) *** 71.67 79.06
Reside in urban area (%) ** 80.07 78.39
Pregnant (%) 1.84 2.36
Number of persons in the household *** 3.186 (1.385) 3.197 (1.405)
Behavioral Health Variables
Alcohol user2 (%) *** 93.46 73.88
Illicit drug user3 (%) *** 65.61 15.24
Major depression episode diagnosis in past year (%) *** 16.43 7.05
Anxiety disorder in past year (%) *** 12.33 4.98
Physical Health Variables
Health status4 *** 2.300 (0.884) 2.164 (0.927)
Diabetes (%) *** 2.62 4.56
Heart disease (%) *** 0.72 2.63
Hypertension in past year (%) *** 6.27 10.39
Asthma (%) *** 15.46 12.40
Pneumonia in past year (%) *** 1.47 0.98
Notes:  Mean values are reported for all variables.  Standard deviations are reported in parentheses for continuous variables.
1Respondents between the ages of 12 and 17. 
2Used alcohol during the past year.
3Used illicit drugs during the past year.
4Health status is measured as a scale ranging from 1= excellent to 4=fair/poor. 
***Statistically significant difference in variable medians across the alcohol use categories, p<0.01, Kruskal-Wallis equality of populations rank test.
**Statistically significant difference in variable medians across the alcohol use categories, p<0.05, Kruskal-Wallis  equality of populations rank test.
*Statistically significant difference in variable medians across the alcohol use categories, p<0.10, Kruskal-Wallis  equality of populations rank test.
Table 2B: Descriptive statistics for adults1.