Table 4. Social factors associated with recreational drug use.

Social factor	Recreational drug use			OR	95% CI	p value
	yes	no	total
Median IMD deprivation score	33.34	22.04	-	—	-	0·001*
Median maternal age (years)	25.00	29.50	-	-	-	0·003*
SmokingΔ (%)	32 (26.0%)	91 (74.0%)	123 (100%)	2.75	1.65–4.58	0.000217**
Non-smokers (%)	44 (11.3%)	344 (88.7%)	388 (100%)
Unemployed (%)	34 (21.3%)	126 (78.8%)	160 (100%)	1.97	1.20 to 3.23	0.011**
Employed (%)	43 (12.0%)	314 (88.0%)	357 (100%)

Δsmoking currently or in the last 6 months; OR: Odds Ratio; CI: confidence interval; *Mann-Whitney U test; **Chi squared test.