Int J Psychiatry Clin Pract. 2002;6(3):147-53. doi: 10.1080/136515002760276072.
Looking at specific weather parameters over a period of time prior to hospital admissions may provide evidence of a link between weather conditions and some psychiatric conditions such as affective disorders. We examined the association between relative humidity (as well as other parameters such as sunshine hours, diurnal variations in temperature and rainfall) and psychiatric admissions in North Cheshire, UK.
The daily numbers of all psychiatric admissions in North Cheshire in a specified year were analysed in relation to meteorological data, which were measured at the meteorological office nearest to the study population.
We found a significant inverse relationship (with time lag) between admissions for affective disorders and relative humidity in the week preceding admission. Changes in diurnal variations in temperature, sunshine hours and rainfall a few days before admission were also noted, but the findings did not achieve statistical significance for any diagnostic category.
The effect of weather parameters on mental health is likely to be influenced by other seasonal factors, as well as non-climatic factors, predominantly social, that may have contributed to the study findings. Psychiatric admissions reflect the behaviour of patients, carers and medical professionals. The complexity of this behaviour and the day-of-the-week periodicity may have confounded variations associated with the weather. (Int J Psych Clin Pract 2002; 6: 147-153 ).
观察一段时间内特定的天气参数可能会为天气条件与某些精神疾病（如情感障碍）之间的联系提供证据。我们研究了英国北柴郡相对湿度（以及日照时数、昼夜温差和降雨量等其他参数）与精神科入院之间的关系。
分析了特定年份北柴郡所有精神科入院人数与气象数据的关系，气象数据是在距研究人群最近的气象办公室测量的。
我们发现，在入院前一周，情感障碍的入院人数与相对湿度呈显著负相关（有时间滞后）。入院前几天昼夜温差、日照时数和降雨量的变化也有记录，但对于任何诊断类别，这些发现都没有达到统计学意义。
天气参数对心理健康的影响可能受到其他季节因素以及可能导致研究结果的非气候因素（主要是社会因素）的影响。精神科入院反映了患者、照顾者和医务人员的行为。这种行为的复杂性和每周的周期性可能使与天气相关的变化变得复杂。（国际精神病临床实践杂志 2002；6：147-153）。
