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. 2021 Feb 25;16(2):e0247226. doi: 10.1371/journal.pone.0247226

Table 3. Multivariable binary logistic regression for smokeless tobacco use in India, GATS-2009-10 and GATS-2016-17.

Explanatory variables GATS-1 GATS-2 Change
P β AOR 95% C.I. of AOR P β AOR 95% C.I. of AOR β gats-1 & β gats-2
Lower Upper Lower Upper
Region
(North) 1 1
Central 0.357 1.418 4.129 3.731 4.570 0.345 1.453 4.276 3.911 4.676 0.035
East 0.305 1.724 5.607 5.069 6.201 0.279 1.515 4.548 4.153 4.980 -0.209
Northeast 0.044 1.877 6.533 5.958 7.163 0.067 2.097 8.143 7.472 8.875 0.220
West 0.162 1.034 2.813 2.532 3.124 0.174 1.105 3.019 2.736 3.330 0.071
South 0.119 0.248 1.281 1.147 1.430 0.109 0.127 1.136 1.027 1.256 -0.120
Type of Residence
(Urban) 1 1
Rural 0.8 0.057 1.059 1.000 1.121 0.751 0.029 1.030 0.975 1.088 -0.028
Wealth index quintiles
(Poorest) 1 1
Poorer 0.304 0.046 1.047 0.960 1.141 0.292 -0.091 0.913 0.857 0.973 -0.137
Middle 0.203 -0.106 0.900 0.822 0.984 0.186 -0.175 0.839 0.781 0.902 -0.069
Fourth 0.149 -0.404 0.667 0.608 0.733 0.17 -0.380 0.684 0.633 0.739 0.025
Richest 0.09 -0.763 0.466 0.421 0.517 0.081 -0.814 0.443 0.404 0.486 -0.052
Age groups
(15–24) 1 1
25–44 0.458 0.440 1.553 1.432 1.684 0.483 0.562 1.755 1.612 1.910 0.122
45–64 0.264 0.423 1.527 1.394 1.673 0.257 0.627 1.871 1.709 2.050 0.203
65 and above 0.09 0.452 1.571 1.384 1.783 0.092 0.608 1.836 1.654 2.038 0.156
Gender
(Male) 1 1
Female 0.407 -0.571 0.565 0.527 0.605 0.334 -0.725 0.484 0.456 0.514 -0.154
Education
(No formal schooling) 1 1
Upto Primary 0.275 -0.010 0.990 0.923 1.061 0.267 -0.045 0.956 0.898 1.018 -0.034
Upto Secondary 0.223 -0.199 0.819 0.760 0.883 0.274 -0.280 0.756 0.708 0.808 -0.080
Above Secondary 0.085 -0.551 0.576 0.525 0.633 0.096 -0.754 0.470 0.431 0.513 -0.203
Occupation
(Government and non-government employee) 1 1
Self employed 0.373 -0.112 0.894 0.839 0.953 0.605 0.143 1.154 1.072 1.243 0.255
Student 0.03 -1.057 0.347 0.302 0.400 0.018 -1.147 0.318 0.272 0.371 -0.090
Homemaker 0.244 -0.577 0.562 0.516 0.611 0.19 -0.480 0.619 0.564 0.678 0.097
Retired or unemployed 0.068 -0.130 0.878 0.784 0.983 0.078 -0.155 0.856 0.769 0.953 -0.025
Smoking causes serious illness
(Yes) 1 1
No 0.124 -0.414 0.661 0.490 0.891 0.077 -0.162 0.850 0.774 0.934 0.252
Smoking causes stroke
(Yes) 1 1
No 0.273 0.137 1.147 1.072 1.228 0.284 0.239 1.270 1.190 1.356 0.102
Smoking causes heart attack
(Yes) 1 1
No 0.186 0.169 1.184 1.094 1.282 0.202 0.134 1.143 1.058 1.236 -0.035
Smoking causes lung cancer
(Yes) 1 1
No 0.034 -0.300 0.741 0.634 0.867 0.057 0.071 1.073 0.948 1.215 0.370
Smokeless tobacco use causes serious illness
(Yes) 1 1
No 0.059 0.194 1.215 1.031 1.430 0.043 0.060 1.061 0.920 1.224 -0.135
Intercept -1.861 -2.150

Note: P—Proportion of the population; AOR–Adjusted Odds Ratio; C.I.—Confidence interval;

= Reference category.