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Table 4 Khat consumption quantity, frequency and expenditure before and after the border tightening

From: Impact of khat price increases on consumption behavior – price elasticity analysis

Items Group Means (SD) Mean differ. (SD) 95% CI P-value
Lower Upper
Khat consumption quantity (in grams):
 "Before the border tightening" vs 814 (247) 94 (20) 72 115 .001
 "After the border tightening (Current)" 720 (265)     
Khat consumption frequency (in # days):
 "Before the border tightening" vs 21 (4) 7 (4) 6 8 .001
 "After the border tightening (Current)" 13 (3)     
Expenditure on khat consumption (in Riyals):
 "Before the border tightening" vs 2239 (856) 2107 (1136) 2226 1987 .001
 "After the border tightening (Current)" 4345 (1675)