Skip to main content

Advertisement

Table 2 Summary statistics and Pearson correlation coefficients of PSS scores at each visit

From: Associations between air pollution and perceived stress: the Veterans Administration Normative Aging Study

Visit n subjects Mean (SD) Visit 1 Visit 2 Visit 3 Visit 4
1 987 26.8 (6.8) 1.00 0.44 0.24 0.20
2 699 26.4 (6.7)   1.00 0.32 0.36
3 410 25.3 (7.6)    1.00 0.34
4 148 25.6 (8.2)     1.00