Table 5: Variables that best explained the variability in use of traditional medicines in the last 12 months. Information on the most parsimonious model obtained when using AIC or BIC during model selection is presented. Negative values for the deviance to the reference level imply a lower probability of TM use than the reference group (deviance = 0).

Variables (%) Slope of covariatesDeviance to referenceStd. errorPairwise comparison with reference level
value value

Best model based on AIC 

Religion
 Christian (reference level)178 (66)0
 Winti6 (2)−0.16760.1883−0.90.3742
 Hindu39 (14)−0.27340.0776−3.50.0005 ***
 Muslim and other47 (17)−0.21800.0704−3.10.0022 **
Number of children in household 0.02730.014020.0.0522.
Plant knowledge (number of spp.) 0.01080.01600.70.5020
Illness last 12 months
 Yes (reference level)174 (64)0
 None96 (36)−0.50320.1101−4.6 ***
Marital status
 Single or LAT (reference level)0
 Married/cohabiting−0.11730.0530−2.20.0279 *
Received information on herbs
 From family, friends, and so on
 (reference level)
194 (72)0
 None76 (28)−0.19460.0591−3.30.0011 **
Attitude medical staff towards patients
 Good (reference level)94 (35)0
 Does not know3 (1)0.05310.24660.20.8298
 Has experienced bad attitude173 (64)−0.13550.0550−2.50.0143 *
Opinion of religion on traditional medicine
 Positive (reference level)95 (35)0
 Critical (depends on priest/type of TM)74 (27)−0.19940.0691−2.90.0042 **
 Does not know66 (24)−0.15900.0715−2.20.0271 *
 Negative35 (13)−0.21100.0852−2.50.0139 **
Illness * plant knowledge
 Yes (reference level)174 (64)0
 No96 (36)0.07270.02353.10.0022 **

Best model based on BIC

 Received information on herbs
 From family, friends, and so on194 (72)0
 None76 (28)−1.05510.3135−3.40.0008 ***
Illness last 12 months
 Yes174 (64)0
 None96 (36)−2.75970.7834−3.50.0004 ***
Plant knowledge (number of spp.) 0.11020.09411.20.2415
Illness last 12 months * plant knowledge
 Yes174 (64)0
 None96 (36)0.45980.18702.50.0139 *

Because of rounding, percentages do not always total 100.
Continuous variable.
*Level of significance:  .: almost significant; * ; ** ; *** .
values < 0.05 are considered significant.