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Table 5 Nested multilevel regression of depression with tobacco consumption among middle aged and elderly Indian adults with various demographic, socio-economic, health related and behavioural determinants as per gender and age-group (Model-4) (*p value < 0.05)

From: Distribution and association of depression with tobacco consumption among middle-aged and elderly Indian population: nested multilevel modelling analysis of nationally representative cross-sectional survey

Characteristics

Tobacco consumption (Any form)

Tobacco (any form)

Smoking (SM)

Smokeless Tobacco (SLT)

Tobacco (both SM + SLT)

Adjusted Odds ratio (95% CI)

Adjusted Odds ratio (95% CI)

Adjusted Odds ratio (95% CI)

Adjusted Odds ratio (95% CI)

Overall (≥ 45 years)

Depression

1.28 (1.18–1.38)*

1.12 (1.01–1.24)*

1.19 (1.09–1.29)*

1.17 (0.97–1.40)

Pseudo R2

0.0968

0.0958

0.0961

0.0957

Male

Depression

1.28 (1.15–1.42)*

1.08 (0.96–1.21)

1.17 (1.03–1.32)*

1.13 (0.92–1.38)

Pseudo R2

0.1009

0.997

0.1000

0.0997

Female

Depression

1.30 (1.15–1.46)*

1.23 (1.01–1.50)*

1.24 (1.10–1.40)*

1.36 (0.81–2.26)

Pseudo R2

0.0938

0.0929

0.0934

0.0928

45–59 years (Middle aged)

Depression

1.32 (1.17–1.48)*

1.12 (0.95–1.29)

1.24 (1.10–1.42)*

1.18 (0.90–1.56)

Pseudo R2

0.1057

0.1045

0.1051

0.1044

 > 60 years (Elderly)

Depression

1.24 (1.11–1.38)*

1.11 (0.98–1.28)

1.15 (1.02–1.29)*

1.14 (0.89–1.46)

Pseudo R2

0.0940

0.932

0.934

0.0931

  1. Model 1—Association depression (outcome variable) with any form of tobacco consumption (explanatory variable)
  2. Model 2—1 + Demographic and socio-economic factors (Gender, age group, religion, caste, wealth index, education, marital status, residence, health insurance, occupation, living alone and region), As per gender- all except gender, as per age group- except age group
  3. Model 3—Model 2 + Health related factors (physical activity, self-rated health, comorbidity and multimorbidity)
  4. Model 4—Model 3 + Behavioural factors (alcohol consumption, media exposure)
  5. Classification accuracy (Model 4) = 93.84%
  6. *p value < 0.05 = significant
  7. CI Confidence Interval, LL Log-likelihood, LR Likelihood Ratio, AIC Akaike Information Criterion, BIC Bayesian Information Criterion