Table 2 Associations of smokeless tobacco use with number of cigarettes used per day
From: Association between smokeless tobacco use and cigarette smoking amount by age
Subgroups | PSM | ||
|---|---|---|---|
Coefficient | P-value | 95% Confidence Interval | |
(1) All subjects | 0.044 | 0.229 | (-0.028—0.115) |
(2) Tried to quit smoking: yes | 0.025 | 0.655 | (-0.085—0.135) |
(3) Tried to quit smoking: no | 0.039 | 0.477 | (-0.069 – 0.148) |
(4) Age < 30 | 0.164 | 0.015 | (0.032 – 0.230) |
(5) Age 30–44 | -0.044 | 0.441 | (-0.156—0.068) |
(6) Age 45- | 0.027 | 0.733 | (-0.129 – 0.184) |
(2) & (4) | 0.230 | 0.036 | (0.015—0.444) |
(2) & (5) | -0.073 | 0.344 | (-0.225 – 0.079) |
(2) & (6) | -0.094 | 0.335 | (-0.285 – 0.097) |
(3) & (4) | 0.088 | 0.457 | (-0.145 – 0.321) |
(3) & (5) | -0.004 | 0.948 | (-0.132 – 0.123) |
(3) & (6) | 0.160 | 0.121 | (-0.042—0.362) |