Table 2

Paired sample t-test comparing pretraining and post-training for each item and total knowledge score.

Variables	Pretraining	Post-training	95% CI for mean difference	t
Variables	Mean (SD)	Mean (SD)	95% CI for mean difference	t
1.Irritability	0.89 (0.31)	0.99 (0.10)	0.05 to 0.15	4.25^**
2.Depression	0.73 (0.45)	0.98 (0.15)	0.18 to 0.31	7.63^**
3.Restlessness	0.95 (0.18)	0.99 (0.10)	0.00 to 0.05	1.90
4.Poor concentration	0.92 (0.27)	0.99 (0.12)	0.02 to 0.10	3.22^*
5.Increased appetite	0.52 (0.50)	0.85 (0.36)	0.26 to 0.39	9.83^**
6 .Weight gain	0.51 (0.50)	0.82 (0.38)	0.24 to 0.38	8.52^**
7.Light headedness	0.82 (0.39)	0.96 (0.20)	0.09 to 0.19	5.20^**
8.Night-time awakening	0.64 (0.48)	0.90 (0.30)	0.20 to 0.33	7.95^**
9.Constipation	0.47 (0.50)	0.84 (0.37)	0.30 to 0.44	10.2^**
10.Diarrhoea	0.22 (0.42)	0.27 (0.45)	0.01 to 0.11	1.51
11.Mouth ulcers	0.32 (0.47)	0.80 (0.40)	0.40 to 0.55	12.38^**
12.Urge to smoke	0.95 (0.21)	0.98 (0.15)	0.00 to 0.05	1.67
Total knowledge scores	7.96 (2.34)	10.35 (1.57)	2.08 to 2.70	15.32^**

*p<0.05, **p<0.001.
Knowledge items were measured by Yes (1) or No (0) with a total maximum score of 12.