Table 7. Subject cumulative compliance.
| Week | Product | Intent-to-treat |
Per-protocol |
||||
|---|---|---|---|---|---|---|---|
| TH | S | TB | TH | S | TB | ||
| Sample size (%) | 44 (34) | 43 (33) | 44 (34) | 33 (38) | 20 (23) | 35 (40) | |
| 4 | Compliant a | 34 (77) | 12 (28) | 44 (100) | 30 (91) | 11 (55) | 35 (100) |
| Somewhat b | 7 (16) | 11 (26) | – d | 2 (6) | 7 (35) | – d | |
| Non c | 3 (7) | 19 (44) | – d | 1 (3) | 2 (10) | – d | |
| 12 | Compliant a | 34 (77) | 14 (33) | 41 (94) | 30 (91) | 13 (65) | 35 (100) |
| Somewhat b | 4 (9) | 10 (23) | – d | 3 (9) | 6 (30) | – d | |
| Non c | 1 (2) | 10 (23) | – d | – d | 1 (5) | – d | |
| 24 | Compliant a | 32 (73) | 11 (26) | 35 (80) | 32 (97) | 11 (55) | 35 (100) |
| Somewhat b | 1 (2) | 9 (21) | – d | 1 (3) | 9 (45) | – d | |
| Non c | 1 (2) | 8 (19) | – d | – d | – d | – d | |
TH, switched to tobacco-heating cigarette; S, switched to snus; TB, switched to ultra-low machine yield tobacco-burning cigarette. Percent values have been rounded.
aCompliant: ≥75% of tobacco product use was assigned product.
bSomewhat compliant: >50% to <75% of tobacco product use was assigned product.
cNon-compliant: ≤50% of tobacco product use was assigned product.
d–, not applicable.