Table 3

Results of probit analyses predicting the probability of cigarette smoking in Zambia

VariablesRandom effects probit modelsBivariate seemingly unrelated random effects probit
All cigarette use
(model 1)
Factory-made cigarettes use
(model 2)
RYO cigarettes use
(model 3)
Dual use (Model 4)Factory-made cigarettes use
(model 5)
RYO cigarettes use
(model 5)
Price of factory-made cigarettes−1.00**−0.171.01**1.06***−0.300.91*
Price of RYO cigarettes−0.73**0.05−0.41**0.130.07−0.42*
Income status
Below $1.25 (reference)
 $1.25 to $1.990.220.210.140.170.210.12
 $2.00 and above−0.25*−0.02−0.65***−0.41***0.01−0.67***
 Not reported−0.35**−0.02−0.32**−0.17−0.01−0.34*
Age0.001−0.03***0.02***−0.004*−0.03***0.02***
Gender
Male (reference)
 Female−4.25***−2.94***−3.63***−1.78***−2.96***−3.68***
Urban area of residence
No (reference)
 Yes−0.010.95***−2.07***−0.78***0.95***−2.06***
Residence in Lusaka
No (reference)
 Yes0.89***0.62***−0.45**−0.020.64***−0.44**
Education
Low education (reference)
 Primary and higher−0.140.91***−0.49***0.37***0.95***−0.50***
Occupation
Other than white collar (reference)
 White collar0.030.21−2.10***−0.86*0.22−2.08***
Self-reported health status
Poor and average (reference)
 Good and excellent−0.70***−0.56***−0.85***−0.44***−0.52***−0.84***
Constant6.67***2.30***5.59***1.16***2.32***5.67***
  • Number of observations:  3740.

  • *P<0.1; **P<0.05; ***P<0.01.

  • RYO, roll your own.