BioMed Research International / 2015 / Article / Tab 2

Research Article

Qat Chewing and Periodontal Pathogens in Health and Disease: Further Evidence for a Prebiotic-Like Effect

Table 2

Clinical characteristics of the qat chewers and qat nonchewers by periodontal health status.

Qat nonchewersQat chewersQat nonchewersQat chewers

Age, median (interquartile range)32.0 (31.3–33.8)32.0 (31.0–33.8)NS44.0 (36.3–50.0)40.0 (32.5–45.0)NS
% males60%80%NS70%95%0.05
% cigarette smokers20%35%NS35%80%0.005
% water pipe smokers 0%10%NS15%20%NS
Plaque index, median (interquartile range)0.17 (0.13–0.25)0.41 (0.24–1.03)0.0011.67 (1.44–1.96)1.73 (1.59–1.92)NS
Mean CPI score, median (interquartile range) 0.00 (0.00-0.00)0.00 (0.00–0.17)NS2.67 (2.50–3.00)2.58 (2.38–2.83)NS
Mean CAL score, median (interquartile range)0.00 (0.00-0.00)0.00 (0.17–0.29)0.0040.83 (0.54–1.63)1.00 (0.54–2.00)NS

value: Chi square for categorical variables and Mann-Whitney test for scale variables. NS: not significant.
Mean CPI/CAL score was calculated for each study subject (average of six scores). At the group level, the data (mean CPI/CAL scores) were presented as medians and interquartile ranges.

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