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. 2018 Apr 9;13(4):e0195607. doi: 10.1371/journal.pone.0195607

Table 4. Air pollution and mental health status according to age.

Subjective stress Poor quality of life Depressiveness Depression diagnosis by doctor Suicidal ideation
Age ≥ 65 Age < 65 Age ≥ 65 Age < 65 Age ≥ 65 Age < 65 Age ≥ 65 Age < 65 Age ≥ 65 Age < 65
PM10
Q4 0.940(0.872, 1.014) 1.150(1.101,1.201) 0.949(0.867, 1.038) 1.338(1.277,1.456) 1.329(1.137,1.555) 1.383(1.246,1.535) 0.866(0.707,1.059) 1.061(0.910,1.237) 1.192(1.067, 1.331) 1.269(1.165,1.382)
Q3 0.986(0.918, 1.060) 1.062(1.018,1.108) 1.101(1.012, 1.198) 1.473(1.383,1.569) 1.327(1.142,1.542) 1.446(1.310,1.600) 0.907(0.752,1.049) 1.154(0.996,1.338) 1.211(1.094, 1.341) 1.206(1.108,1.312)
Q2 0.919(0.854, 0.988) 1.025(0.979,1.073) 1.006(0.926, 1.094) 1.122(1.049,1.201) 1.189(1.028,1.376) 1.200(1.079,1.334) 1.027(0.856,1.232) 1.022(0.874,1.194) 1.054(0.945, 1.175) 1.033(0.945,1.130)
Q1 1 1 1 1 1 1 1 1 1 1
p-inter action <0.001 <0.001 0.688 0.218 0.765
NO2
Q4 1.182(1.095,1.277) 1.171(1.120,1.225) 1.203(1.101,1.314) 1.706(1.598,1.821) 1.550(1.341,1.792) 1.478(1.337,1.633) 1.071(0.884,1.299) 1.289(1.107,1.501) 1.319(1.177,1.478) 1.702(1.286,1.529)
Q3 1.189(1.101,1.284) 1.093(1.044,1.144) 0.843(0.771,0.923) 1.207(1.127,1.294) 1.334(1.144,1.556) 1.223(1.098,1.362) 1.123(0.929,1358) 1.231(1.049,1.444) 1.074(0.957,1.205) 1.134(1.031,1.247)
Q2 1.096(1.023,1.174) 1.109(1.061,1.160) 0.932(0.861,1.009) 1.068(0.999,1.141) 1.101(0.963,1.258) 1.139(1.027,1.262) 0.974(0.818,1.153) 1.080(0.929,1.254) 1.045(0.943,1.158) 1.197(1.098,1.304)
Q1 1 1 1 1 1 1 1 1 1 1
p-inter action 0.060 <0.001 0.662 0.893 0.181
CO
Q4 1.091(1.014,1.173) 1.111(1.063,1.162) 0.971(0.890,1.061) 1.249(1.172,1.332) 1.626(1.398,1.891) 1.463(1.322,1.618) 1.213(1.006,1.462) 1.110(0.961,1.284) 1.115(0.999, 1.244) 1.255(1.152,1.368)
Q3 1.060(0.984,1.142) 1.098(1.051,1.148) 0.999(0.916,1.090) 1.470(1.379,1.567) 1.600(1.368,1.872) 1.635(1.475,1.811) 1.094(0.898,1.331) 1.187(1.020,1.382) 1.145(1.027, 1.277) 1.229(1.125,1.343)
Q2 1.097(1.019,1.182) 1.069(1.025,1.116) 0.997(0.913,1.089) 1.234(1.157,1.316) 1.473(1.260,1.721) 1.504(1.359,1.666) 1.103(0.905,1.343) 1.050(0.905,1.218) 1.027(0.920, 1.147) 1.131(1.035,1.236)
Q1 1 1 1 1 1 1 1 1 1 1
p-inter action 0.758 <0.001 0.329 0.602 0.265
SO2
Q4 0.994(0.921,1.072) 0.955(0.914,0.998) 0.934(0.855,1.022) 0.902(0.846,0.961) 1.272(1.094,1.479) 0.987(0.894,1.089) 0.977(0.804,1.187) 0.901(0.775,1.043) 0.947(0.850,1.056) 0.839(0.771,0.914)
Q3 1.041(0.962,1.126) 1.047(1.002,1.095) 1.025(0.934,1.125) 1.181(1.109,1.258) 1.341(1.149,1.563) 1.203(1.091,1.326) 0.987(0.817,1.191) 1.195(0.944,1.271) 1.022(0.916,1.141) 1.074(0.986,1.169)
Q2 0.957(0.889,1.030) 0.947(0.907,0.989) 0.995(0.910,1.086) 0.908(0.851,0.969) 1.193(1.027,1.386) 1.066(0.968,1.175) 0.954(0.781,1.166) 0.935(0.805,1.085) 0.934(0.841,1.038) 0.942(0.865,1.026)
Q1 1 1 1 1 1 1 1 1 1 1
p-inter action 0.500 <0.001 0.092 0.825 0.104

Bold characteristics means P–value <0.05 among the values with p-interaction < 0.05. EQ-5D index was analyzed by logarithmic transformation. Adjustment for sex, smoking, drinking, physical activity, education, marital status, employment, household income, sleep duration, residence and medical history (hypertension, diabetes mellitus, dyslipidemia, stroke, myocardial infarction, ischemic heart disease, asthma, arthritis)