. Author manuscript; available in PMC: 2020 Sep 1.

Published in final edited form as: Egypt J Occup Med. 2019 Sep;43(3):331–343. doi: 10.21608/ejom.2019.47402

Table (2):

Mean ± SD of neurobehavioral performance for the exposed and control groups

Neurobehavioral tests	Studied groups		t-test	P value
Neurobehavioral tests	Exposed (n=100)	Controls (n=50)	t-test	P value

Attention:
Trail making test part 1	89.60±16.44	81.70±18.11	2.58	0.008^*
Trail making test part 1
Trail making test part 2	176.35±39.27	158.55±39.52	2.61	0.009^*

Concentration:
Similarities test	10.31±2.59	13.91±3.11	7.50	<0.001^*

Intellectual function:
Block design test	28.94±3.06	31.55±2.37	5.29	0.004^*

Visual perception and memory:
Benton visual retention test	5.70±1.66	6.87±2.07	3.39	0.007^*

Hand dexterity:
Santa Ana dexterity test (dominant hand)	40.49±2.58	46.31±2.91	12.47	<0.001^*
Santa Ana dexterity test (dominant hand)
Santa Ana dexterity test (non-dominant hand)	37.78±3.57	39.82±3.12	3.44	0.007^*

Visuo-motor integration:
Beery visuo-motor imitation test	12.96±2.17	15.13±1.09	6.66	0.002^*

Significant