2013—2019年宁波市高温热浪对中暑的滞后影响

doi:10.3969/j.issn.1673-503X.2022.01.014

Abstract

Abstract:

Heat-wave has been becoming more serious, posing a major threat to residents' health.In this paper, the lagged effects of heat-wave on heatstroke were investigated based on the statistical characteristics of meteorological and heatstroke data from June to September during 2013-2019 in Ningbo by using distributed lag non-linear model (DLNM).The results show that the one-day relative risk (RR) value (95% CI) of heatstroke caused by heat-waves (no hierarchy) reaches the maximum value (P>0.05) on the first day, and the cumulative RR value (95% CI) reaches the maximum value (P>0.05) for the lag of 0-4 day.The maximum one-day RR value (CI) of heatstroke caused by different levels of heat-waves including general, hazardous and severe hazardous heat-waves appears on the first day, and the maximum cumulative RR value (CI) appears on the lag of 0-3 day.In addition, The one-day and cumulative RR values (CIs) of heatstroke caused by heat-wave in the young group (< 65 years old) are significantly lower than in the elderly group (≥ 65 years old).With the heat-wave level enhancing, the one-day and cumulative RR values (CIs) increase gradually.

Key words: Heat-wave, Heatstroke, Distributed lag non-linear model (DLNM), Relative risk

CLC Number:

Wen-han LU,Shao-hua GU,Shi-qiang SUN,Cheng-ming ZHANG,Xian-chun ZHU. Quantitative analysis of the lagged effects of heat-wave on heatstroke in Ningbo from 2013 to 2019[J]. Journal of Meteorology and Environment, 2022, 38(1): 106-112.

Figures/Tables 6

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统计项目	指标	平均值±标准差	最小值	P25	中位数	P75	最大值
气象要素	日最高气温T_max/℃	22.36±8.89	-2.50	15.40	23.50	29.10	42.10
气象要素	日平均湿度RH_avg/(%)	75.83±12.24	12.24	68.00	76.00	84.00	100.00
每日中暑病例数	全部人群	8.61±11.48	0.00	1.00	4.00	12.00	75.00
年龄组	低龄组(＜65)	6.53±9.72	0.00	1.00	2.00	8.00	65.00
年龄组	高龄组(≥65)	2.09±4.18	0.00	0.00	0.00	2.00	46.00

滞后天数/d	人群
滞后天数/d	全部人群	低龄组(＜65岁)	高龄组(≥65)
Lag0	1.37(1.29—1.47)	1.33(1.24—1.42)	1.41(1.29—1.53)
Lag0-1	1.74(1.56—1.94)	1.64(1.47—1.83)	1.82(1.58—2.10)
Lag0-2	2.04(1.79—2.34)	1.89(1.64—2.17)	2.18(1.81—2.61)
Lag0-3	2.24(1.93—2.60)	2.05(1.76—2.39)	2.43(1.97—2.99)
Lag0-4	2.33(1.99—2.73)	2.12(1.80—2.49)	2.57(2.05—3.22)

滞后天数	高温热浪等级	年龄组
滞后天数	高温热浪等级	全部人群	低龄组(＜65岁)	高龄组(≥65岁)
	一般	1.11(1.08—1.15)	1.10(1.06—1.13)	1.17(1.11—1.23)
lag0	危害	1.23(1.59—1.32)	1.20(1.13—1.28)	1.37(1.23—1.52)
	强危害	1.37(1.25—1.51)	1.32(1.20—1.44)	1.60(1.36—1.88)
	一般	1.21(1.14—1.27)	1.17(1.12—1.23)	1.31(1.20—1.43)
lag0-1	危害	1.44(1.30—1.60)	1.38(1.24—1.52)	1.72(1.44—2.05)
	强危害	1.73(1.48—2.03)	1.61(1.39—1.88)	2.26(1.73—2.94)
	一般	1.26(1.19—1.35)	1.23(1.16—1.30)	1.41(1.27—1.57)
lag0-2	危害	1.60(1.41—1.81)	1.51(1.34—1.70)	2.00(1.61—2.47)
	强危害	2.02(1.68—2.44)	1.85(1.54—2.22)	2.82(2.05—3.89)
	一般	1.30(1.22—1.39)	1.26(1.18—1.34)	1.47(1.31—1.65)
lag0-3	危害	1.69(1.48—1.93)	1.59(1.40—1.81)	2.16(1.72—2.72)
	强危害	2.21(1.81—2.69)	2.00(1.65—2.43)	3.18(2.26—4.49)

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Quantitative analysis of the lagged effects of heat-wave on heatstroke in Ningbo from 2013 to 2019

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