| Characteristic |
Expired
(n=219) |
Not Expired
(n=541) |
Unadjusted Odds Ratio (95% CI)b |
Adjusted Odds Ratio (95% CI)b,c |
| Unsafe storaged |
|
|
|
|
| No |
184 (84) |
397 (73) |
reference |
reference |
| Yes |
33 (15) |
127 (23) |
0.56 (0.35, 0.89)* |
0.36 (0.21, 0.64)* |
| Missing |
2 (1) |
17 (4) |
|
|
| Medication category |
|
|
|
|
| Antibiotics |
6 (3) |
14 (3) |
1.07 (0.39, 2.93) |
1.45 (0.52, 4.04) |
| Asthma and respiratory |
9 (4) |
27 (5) |
0.83 (0.35, 1.98) |
0.98 (0.33, 2.95) |
| Behavioral |
7 (3) |
19 (4) |
0.92 (0.36, 2.38) |
1.34 (0.50, 3.56) |
| Cold and allergy |
43 (20) |
103 (19) |
1.04 (0.62, 1.77) |
0.94 (0.52, 1.72) |
| Pain |
41 (19) |
124 (23) |
0.83 (0.48, 1.42) |
0.74 (0.40, 1.36) |
| Stomach and digestive |
29 (13) |
52 (10) |
1.39 (0.78, 2.49) |
1.26 (0.67, 2.40) |
| Vitamins |
15 (7) |
72 (13) |
0.52 (0.24, 1.12) |
0.41 (0.17, 1.01) |
| Other |
66 (30) |
124 (23) |
reference |
reference |
| Missing |
3 (1) |
6 (1) |
|
|
| Type of medication |
|
|
|
|
| |
Over-the-counter |
145 (66) |
340 (63) |
reference |
reference |
| |
Prescription |
74 (34) |
199 (37) |
0.87 (0.62, 1.22) |
0.72 (0.44, 1.19) |
| |
Missing |
0 (0) |
2 (0) |
|
|
| Storage location of medication |
|
|
|
|
| |
Bathroom |
88 (40) |
161 (30) |
1.75 (1.25, 2.45)* |
2.35 (1.57, 3.51)* |
| |
Bedroom |
5 (2) |
18 (3) |
0.89 (0.29, 2.67) |
1.36 (0.47, 3.95) |
| |
Kitchen |
102 (47) |
326 (60) |
reference |
reference |
| |
Other location |
24 (11) |
36 (7) |
2.13 (1.26, 3.61)* |
2.22 (1.22, 4.04)* |
aExpiration dates were missing on 99 medications.
bLogistic regression analyses compare acetaminophen to non-acetaminophen medications and account for clustering within individual households.
cAdjusted odds ratios include all listed variables as independent variables.
dUnsafe storage defined as medications stored below 5 feet that are not locked.
*Significant result (α=0.05) |
