Table 3

Adjusted ORs for oligozoospermia, asthenozoospermia, and teratozoospermia and leatherwork (current or most recent job) (n=1580)

Exposure (yes v no)	Adjusted^3-151OR	95% CI	p Value
Oligozoospermia:
Leatherwork (current or most recent)	1.20	0.43 to 3.33	0.73
Surgical operations^3-150	2.43	1.64 to 3.62	<0.001
Social class III: rest	1.35	1.07 to 1.71	0.013
Leicestershire resident	2.02	1.37 to 2.96	<0.001
Asthenozoospermia:
Leatherwork (current or most recent)	0.46	0.17 to 1.28	0.14
Surgical operations^3-150	2.02	1.37 to 2.99	<0.001
Leicestershire resident	2.15	1.59 to 2.91	<0.001
Teratozoospermia:
Leatherwork (current or most recent)	1.65	0.37 to 7.30	0.51
Surgical operations^3-150	2.20	1.23 to 3.93	0.008
Social class III: rest	0.89	0.60 to 1.31	0.55
Leicestershire resident	1.13	0.64 to 1.99	0.67

↵3-150 Surgical operations which may potentially impair fertility.
↵3-151 Each OR listed for each subheading was adjusted for the effects of all other factors listed under that subheading.