Table 2

OR and 95% CIs for the association of daily exposure to Saharan dust and PM10 with natural, cardiovascular and respiratory mortality for people aged 75 or above

SDDPM10* (no SDD)PM10* (SDD)Interaction PM10*–SDD
OR (95% CI)OR (95% CI)OR (95% CI)p Value
Whole year
 Natural1.080 (0.950 to 1.229)1.008 (1.000 to 1.016)1.000 (0.965 to 1.036)0.55
 Cardiovascular1.092 (0.900 to 1.325)1.003 (0.991 to 1.015)0.992 (0.941 to 1.046)0.61
 Respiratory1.320 (0.871 to 2.001)1.016 (0.991 to 1.041)0.998 (0.892 to 1.115)0.69
Hot season
 Natural1.169 (0.940 to 1.453)1.048 (1.011 to 1.086)1.016 (0.922 to 1.119)0.31
 Cardiovascular1.285 (0.923 to 1.788)1.046 (0.992 to 1.104)0.987 (0.853 to 1.142)0.22
 Respiratory0.964 (0.478 to 1.945)1.064 (0.938 to 1.206)1.171 (0.849 to 1.615)0.34
Cold season
 Natural0.949 (0.726 to 1.241)1.005 (0.997 to 1.014)1.015 (0.964 to 1.070)0.31
 Cardiovascular0.895 (0.599 to 1.338)1.000 (0.988 to 1.012)1.020 (0.943 to 1.103)0.22
 Respiratory0.777 (0.322 to 1.875)1.008 (0.983 to 1.033)1.046 (0.884 to 1.239)0.34
  • Model with Saharan dust day (SDD), PM10 and interaction between SDD and PM10.

  • * Effect of an increase of 10 μg/m3 of PM10.