CT scan screening is associated with increased distress among subjects of the APExS

BMC Public Health

Table 2 Comparison of the 3 subscales and global PCQ score at baseline and during follow-up according to descriptive variables

	Baseline	Follow-up	P value¹
PCQ Score
Social dimension score	2.67 (2.50-2.83)	3.36 (3.16-3.56)	P < 0.0001
Physical dimension score	2.61 (2.48-2.75)	3.23 (3.08-3.39)	P < 0.0001
Emotional dimension score	3.01 (2.87-3.15)	3.47 (3.32-3.62)	P < 0.0001
Global PCQ score	8.30 (7.91-8.69)	10.07 (9.62-10.53)	P < 0.0001
Abnormal PCQ score²	171 (20.6)	271 (32.6)	P < 0.0001
Acquiring abnormal PCQ score² at T2		158 (19.0)³
Gender
Males	8.24 (7.83-8.64)	10.11 (9.63-10.58)	P < 0.0001
Females	9.07 (7.67-10.47)	9.68 (8.03-11.33)	P = 0.4949
	P = 0.2601⁴	P = 0.6278⁴
Smoking status
Non-smokers	8.23 (7.65-8.80)	9.85 (9.18-10.50)	P < 0.0001
Former smokers	8.13 (7.55-8.71)	9.76 (9.08-10.43)	P < 0.0001
Smokers	9.52 (8.24-10.80)	12.75 (11.24-14.25)	P < 0.0001
	P = 0.1437⁴	P = 0.0013⁴
Counseling visit
Yes	8.03 (7.65-8.20)	9.98 (9.42-10.53)	P < 0.0001
No	8.88 (8.20-9.56)	10.29 (9.48-11.10)	P = 0.0002
	P = 0.0439⁴	P = 0.5244⁴
Self-assessment of asbestos exposure
Nil/light	6.14 (5.00-7.27)	7.44 (6.12-8.76)	P = 0.0074
Moderate	7.97 (7.37-8.57)	9.06 (8.35-9.76)	P = 0.0003
Heavy	9.96 (9.21-10.71)	12.43 (11.55-13.29)	P < 0.0001
Do not know	8.08 (7.28-10.27)	10.50 (9.56-11.53)	P < 0.0001
	P < 0.0001⁴	P < 0.0001⁴

1: comparison of PCQ scores at baseline and during follow-up by t-test
2: PCQ values greater than the 95^th percentile of the PCQ score distribution in non-exposed subjects (see ref [16]
3: among the 661 subjects without an abnormal PCQ score at baseline
4: comparison of PCQ scores between variables at each time-point of the study by GLM

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