Cytogenetic, DNA-repair and Apoptosis Studies in Hospital Nurses’ Peripheral Blood Lymphocytes Occupationally Exposed to Volatile Anesthetic Gases : Table 1

Table 1: Demographic data of controls and exposed groups.

Exposure	No. of cases	Average age (yr)	Average exposure time (yr)	% of eversmokers	% of moderate drinkers	% of malignant diseases
Controls	137	37.0	none	36.2	44.4	none
Exposed	128	39.6	15.1	46.8	64.8	9.3
Halothane	73	39.9	15.2	45.9	63.0	8.2
Non- Halothane	55	39.1	15.1	47.2	67.2	10.9