Effect of apparent temperature on daily emergency admissions for mental and behavioral disorders in Yancheng, China: a time-series study

Table 2 Characteristics of admissions for MDs and meteorological variables and air pollutants in Yancheng, China, 2014–17

Group	Sum	Mean (SD)	P1	P5	P10	P25	P50	P75	P90	P95	P99
Total (F00–F99)	8438	5.8 (3.0)	0	2	2	4	5	8	10	11	14.4
MDs due to alcohol (F10)	6802	4.7 (2.7)	0	0	1	2	4	6	8	10	13
Male	5889	4.1 (2.4)	0	1	1	2	4	5	7	8	11
Female	2549	1.7 (1.5)	0	0	0	1	2	2	4	4	6
< 45 years	6038	4.1 (2.4)	0	1	1	2	4	6	7	9	11
≥ 45 years	2400	1.6 (1.4)	0	0	0	1	1	2	3	4	6
45–60 years	1911	1.3 (1.2)	0	0	0	0	1	2	3	4	5
≥ 60 years	489	0.3 (0.6)	0	0	0	0	0	1	1	1	2
Warm (Apr to Sep)	4134	2.8 (3.5)	0	0	0	0	0	5	8	9	12
Cool (Oct to Mar)	4304	2.9 (3.7)	0	0	0	0	0	5	8	10	14
Apparent temperature (°C)	–	15.2 (12.1)	−5.4	−2.8	−0.92	4.03	15.6	25.3	30.6	34.5	38.1
Mean temperature (°C)	–	15.7 (9.1)	−0.7	1.3	3.1	7.3	16.7	23.4	27.0	29.3	32.2
Relative humidity (%)	–	76.1 (13.4)	45	51	56	67	78	86	93	96	100
Sunshine duration (h)	–	5.2 (3.9)	0	0	0	0	6.0	8.5	10.1	10.9	11.8
Wind speed (m/s)	–	2.5 (1.1)	0.6	1.1	1.3	1.7	2.3	3.0	3.8	4.3	5.6
Rainfall (mm)	–	3.3 (12.5)	0	0	0	0	0.0	0.3	8.1	20.2	60.7
BP (hPa)	–	1017.0 (9.2)	999.9	1003	1005	1009	1017	1024	1029	1032	1035
PM₁₀ (μg/m³)	–	83.3 (49.0)	15.6	28.0	34.0	48.0	71.0	108.0	146.0	176.0	253.0
PM_2.5 (μg/m³)	–	48.3 (35.0)	8.0	12.0	15.0	230.0	23.0	39.0	94.0	115.0	178.4
SO₂ (μg/m³)	–	16.9 (10.1)	5	7	8	10	14	20	30	37	54
CO (mg/m³)	–	0.8 (0.3)	0.3	0.4	0.5	0.6	0.7	0.9	1.2	1.4	1.8
NO₂ (μg/m³)	–	25.7 (13.1)	8	11	12	16.0	22.0	31.0	44	54	67
O₃_8h (μg/m³)	–	105.8 (38.0)	29.6	56.0	64.0	78.0	101.0	127.0	156.0	175.0	212.4

P1, P5, P10, P25, P50, P75, P90, P95, P99: the 1th percentile, the 5th percentile, the 10th percentile, the 25th percentile, the 50th percentile, the 75th percentile, the 90th percentile, the 95th percentile, the 99th percentile; SD, standard deviation; BP, barometric pressure

ISSN: 1476-069X