Table 2. Matched Odds ratios (mORs), population attributable risks (PARs), and 95% confidence intervals (CIs) for the main risk factors for unintentional childhood poisoning in a matched case control study in Karachi.

Risk Factors	mOR	95% CI	All Children		Boys		Girls
			PAR	95% CI	PAR	95% CI	PAR	95% CI
Accessibility to hazardous chemicals and medicines
Both chemicals and medicines stored safe	1
Either chemical or medicines stored safe	1.5	0.8–2.8	11.6	0.7 to 15	11	7 to 15	12.4	8.5 to 16.3
Both chemicals and medicine stored unsafe	5.6	1.9–16.7	12	8 to 16	12	8 to 16	11.2	7 to 15
Child reported as hyperactive
No	1
Yes	8.2	4.6–16.1	19.1	15.1 to 23	72	68 to 76	63	59 to 67
Storage of kerosene and petroleum in soft drink bottles
No	1
Yes	3.8	2.0–7.3	40	38 to 42	43	39 to 46	36	32 to 40
Socioeconomic status
Upper	1
Middle	2.5	0.9–6.6	21	15.1 to 26.8	18.2	14 to 22	25	21 to 28
Low	9.2	2.8–30.1	48	42.1 to 53.8	48	44 to 51	49	45 to 53
Mother's education level
≥10 yrs of education	1
<10 years of education	2.2	0.9–5.2	15	9.1 to 20.8	16	12 to 19.7	16	12 to 19
No formal education	4.2	1.8–9.6	38	32.1 to 42.6	37	33 to 41	40	0.40 to 44
History of previous poisoning
No	1
Yes	8.6	1.7–43.5	6	2 to 10	6.3	2.4 to 10	5.2	1.2 to 9.1