Table 6.

Comparison of psychological morbidity among 1^st year versus 4^th year medical students

Scales	t	df	P
Depression (SDS score)	−1.371	200	0.17
Anxiety (SAS score)	−2.564	200	0.01
Problem drinking (MAST score)	−0.376	200	0.71
Tobacco use disorder (NDSS score)	0.457	200	0.65
Problem drug use (DAST score)	0.510	200	0.61
Social stress score	−1.78	200	0.08
RISCI score (stress component)	−9.42	200	<0.01
HESI score (educational stress)	−5.00	200	<0.01

SDS – Zung’s self-rating scale for depression; SAS – Zung’s self-rating scale for anxiety; MAST – Michigan alcohol screening test; NDSS – Nicotine dependence syndrome scale; DAST – Drug abuse screening test; RISCI – Rhode island stress and coping inventory; HESI – Higher education stress inventory