Percentage of adults regularly using NSAIDs in the USA, 1988–1994 and 1999–2004
| All NSAIDs | p Value | Prescription NSAIDs | p Value | |||
| NHANES III (1988–1994) n=16 533 % (SE) | NHANES 1999–2004 n=13 744 % (SE) | NHANES III (1988–1994) n=7664* % (SE) | NHANES 1999–2004 n=13 725 % (SE) | |||
| NSAID user | 16.6 (0.6) | 26.1 (0.8) | <0.001 | 15.9 (0.7) | 9.5 (0.4) | <0.001 |
| NSAID non-user† | 83.4 (0.6) | 73.9 (0.8) | 84.1 (0.7) | 90.5 (0.4) | ||
| Type of NSAID | <0.001 | <0.001 | ||||
| Non-user† | 83.4 (0.6) | 73.9 (0.8) | 84.1 (0.7) | 90.5 (0.4) | ||
| Aspirin | 7.5 (0.4) | 10.2 (0.5) | 0.1 (0.0) | 0.2 (0.1) | ||
| Non-aspirin NSAID | 7.6 (0.4) | 11.6 (0.4) | 14.9 (0.7) | 8.8 (0.4) | ||
| More than one | 1.6 (0.1) | 4.3 (0.2) | 0.9 (0.2) | 0.9 (0.2) | ||
| Acetaminophen use | 6.2 (0.3) | 8.7 (0.4) | <0.001 | 5.1 (0.4) | 3.8 (0.3) | 0.01 |
| Acetaminophen non-user† | 93.8 (0.3) | 91.3 (0.4) | 94.9 (0.4) | 96.2 (0.3) | ||
*More than half (54%) of the study population is missing Prescription Medication data. The population with Prescription Medication data is significantly different from the population without these data for all table 1 variables, except categorical poverty to income ratio.
†Non-users include never users and non-regular users.
NHANES, National Health And Nutrition Examination Survey; NSAIDs, non-steroidal anti-inflammatory drugs.