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ORIGINAL SCIENTIFIC PAPErS<br />
quantitative research<br />
Table 2. Association between demographic variables and cigarette source<br />
Variable<br />
Crude OR<br />
(95% CI)<br />
Retail purchase Obtaining cigarettes from family Obtaining cigarettes from friends or o<strong>the</strong>rs<br />
p<br />
value<br />
Adjusted OR<br />
(95% CI)<br />
p<br />
value<br />
Crude OR<br />
(95% CI)<br />
p<br />
value<br />
Adjusted OR<br />
(95% CI)<br />
p<br />
value<br />
Crude OR<br />
(95% CI)<br />
p<br />
value<br />
Adjusted OR<br />
(95% CI)<br />
p<br />
value<br />
Year 0.88 (0.87–0.90)