Table 4 Odds ratios and adjusted odds ratios in favor of tobacco use for age at marriage and other covariates

Age at marriage

 18 to 21

Ref.

Ref.

Ref.

Ref.

Ref.

Ref.

 13 or less

2.155***

1.534***

1.944***

1.414***

1.293***

1.359***

(1.987, 2.336)

(1.417, 1.662)

(1.833, 2.062)

(1.292, 1.547)

(1.185, 1.411)

(1.273, 1.451)

 14 to 15

1.986***

1.424***

1.775***

1.332***

1.168***

1.252***

(1.859, 2.122)

(1.335, 1.519)

(1.696, 1.857)

(1.237, 1.434)

(1.087, 1.256)

(1.191, 1.317)

 16 to 17

1.511***

1.298***

1.446***

1.170***

1.113***

1.146***

(1.429, 1.597)

(1.223, 1.378)

(1.388, 1.506)

(1.103, 1.242)

(1.044, 1.187)

(1.097, 1.197)

Age

1.069***

1.045***

1.059***

(1.061, 1.077)

(1.036, 1.055)

(1.055, 1.062)

Education

 No education

Ref.

Ref.

Ref.

 Primary

0.801***

0.778***

0.796***

(0.740, 0.867)

(0.721, 0.840)

(0.751, 0.844)

 Secondary

0.456***

0.469***

0.456***

(0.417, 0.499)

(0.429, 0.513)

(0.427, 0.487)

 Higher

0.140***

0.210***

0.160***

(0.099, 0.198)

(0.135, 0.326)

(0.122, 0.209)

Household size

 3 or less

Ref.

Ref.

Ref.

 4 to 5

0.916*

0.998

0.973

(0.833, 1.008)

(0.916, 1.087)

(0.915, 1.036)

 6 to 8

0.866***

1.037

0.961

(0.785, 0.955)

(0.948, 1.133)

(0.900, 1.025)

 9 or more

0.901

1.105

0.993

(0.796, 1.021)

(0.973, 1.254)

(0.907, 1.088)

Wealth index quintiles

 1st (Poorest)

Ref.

Ref.

Ref.

 2nd (Poorer)

0.683***

0.796***

0.732***

(0.639, 0.730)

(0.745, 0.851)

(0.698, 0.769)

 3rd (Middle)

0.516***

0.578***

0.541***

(0.473, 0.563)

(0.534, 0.626)

(0.509, 0.575)

 4th (Richer)

0.334***

0.443***

0.385***

(0.295, 0.378)

(0.396, 0.495)

(0.352, 0.420)

 5th (Richest)

0.168***

0.241***

0.205***

(0.132, 0.213)

(0.203, 0.285)

(0.179, 0.235)

Religion

 Hindu

Ref.

Ref.

Ref.

 Muslim

1.244***

1.328***

1.287***

(1.109, 1.396)

(1.196, 1.476)

(1.184, 1.399)

 Christian

0.706**

0.655***

0.679***

(0.536, 0.930)

(0.530, 0.810)

(0.564, 0.817)

 Sikh

0.054***

0.276***

0.181***

(0.012, 0.238)

(0.131, 0.580)

(0.094, 0.349)

 Buddhist

0.691*

0.808

0.756**

(0.466, 1.026)

(0.555, 1.178)

(0.573, 0.998)

 Other

1.025

1.284*

1.117

(0.772, 1.359)

(0.958, 1.723)

(0.895, 1.393)

Caste

 Not backward class

Ref.

Ref.

Ref.

 Scheduled caste

1.320***

1.377***

1.347***

(1.171, 1.488)

(1.235, 1.535)

(1.236, 1.469)

 Scheduled tribe

1.800***

1.746***

1.781***

(1.580, 2.051)

(1.547, 1.969)

(1.616, 1.963)

 Other backward class

0.990

1.065

1.030

(0.888, 1.102)

(0.970, 1.170)

(0.955, 1.111)

Residence

 Rural

Ref.

Ref.

Ref.

 Urban

1.461***

1.300***

1.381***

(1.309, 1.631)

(1.174, 1.440)

(1.270, 1.503)

 Observations

190,551

119,402

309,953

190,069

119,281

309,681