Table 6.
Prevalence of DS use by number of CDMC (nineteen major code groups only) in the US military dietary supplement use study
| DS category | Proportion (%) of DS users | P-value (Chi-square) | P-value (linear trend) | |||
|---|---|---|---|---|---|---|
| No CDMC (n 7905) | 1–2 CDMC (n 9772) | 3–4 CDMC (n 5462) | ≥5 CDMC (n 3541) | |||
| Any DS | 72·0 | 72·7 | 76·5 | 77·8 | <0·01 | <0·01 |
| MVM | 40·8 | 43·6 | 48·5 | 49·6 | <0·01 | <0·01 |
| Individual vitamin/minerals | 25·3 | 28·8 | 35·3 | 41·8 | <0·01 | <0·01 |
| Proteins/AA | 45·2 | 42·7 | 41·2 | 35·8 | <0·01 | <0·01 |
| Combination products | 45·1 | 43·9 | 45·4 | 42·6 | 0·02 | 0·11 |
| Prohormones | 4·6 | 4·8 | 5·2 | 4·9 | 0·42 | 0·11 |
| Herbal products | 16·8 | 19·9 | 22·3 | 24·9 | <0·01 | <0·01 |
| Joint health products | 7·7 | 9·2 | 10·9 | 11·5 | <0·01 | <0·01 |
| Fish oils | 21·6 | 22·9 | 23·8 | 24·7 | <0·01 | <0·01 |
| Other DS | 6·2 | 7·2 | 8·7 | 10·8 | <0·01 | <0·01 |
DS, dietary supplement; CDMC, clinically diagnosed medical conditions; MVM, multivitamin/multimineral; AA, amino acid; ICD-10, International Classification of Diseases, Clinical Modification, Revision 10 (ICD-10 code groups; refer to Table 2 for specifics).