Table 4.

Summary of Statistically Significant Changes in Lung Cancer Survivors’ Physical Activity Across the Pre-Diagnosis, Post-Treatment, and Current Time Periods According to Select Medical Characteristics

	Change* from Pre-Diagnosis to Post-Treatment	P Value for Change Within Group	P Value for Interaction (Difference in Change)	Change* from Post-Treatment to Current Time	P Value for Change Within Group	P Value for Interaction (Difference in Change)
Light Physical Activity
≤2 Comorbid conditions	34.7	.025	.001	−12.4	.281	.111
>2 Comorbid conditions	−33.6	.007		18.5	.237
Strenuous Physical Activity
Pre-operative FEV1 ≤80% predicted	1.8	.289	.001	3.4	.215	.054
Pre-operative FEV1 >80% predicted	−23.4	.002		12.5	.001
Post-operative hospital stay ≤10 days	−16.3	.006	.981	11.9	.001	.003
Post-operative hospital stay >10 days	−15.9	.282		0.9	.311
≤1 Surgical complication	−17.9	.004	.004	10.9	.001	.001
>1 Surgical complication	0.0	1.000		0.0	1.000
Sedentariness†
Pre-operative FEV1 ≤80% predicted	0.82	.058	.028	−1.09	.006	.014
Pre-operative FEV1 >80% predicted	−0.27	.274		0.05	.842
Normal weight	0.37	.251		−0.64	.019
Overweight	−0.60	.107	.049‡	0.28	.439	.043‡
Obese	0.33	.479	.950‡	−0.52	.315	.836‡
≤2 Comorbid conditions	−0.56	.047	<.001	−0.06	.835	.251
>2 Comorbid conditions	1.05	.002		−0.53	.069

Note. FEV1 = forced expiratory volume in the first second. P values less than .05 are denoted by italics.

^*For light activity and strenuous physical activity, change scores represent regression estimates in minutes of activity per week, with positive scores denoting an increase in activity and negative scores a decrease in activity. For sedentariness, change scores are log odds ratios, with positive scores denoting a greater likelihood of becoming sedentary and negative scores denoting a lower likelihood of becoming sedentary.

^†Sedentary defined as engaging in no light, moderate, or strenuous intensity activity.

^‡For comparison with normal weight individuals.