The relationship between ambient temperature and fasting plasma glucose, temperature-adjusted type 2 diabetes prevalence and control rate: a series of cross-sectional studies in Guangdong Province, China

Table 2 Difference of FPG (mmol/L) at different typical interval of temperature

	Total population	Normal fasting glucose participants	Known type 2 diabetes patients	Newly detected type 2 diabetes patients
Temperature ^a	5 °C vs 30 °C	5 °C vs 30 °C	5 °C vs 30 °C	5 °C vs 19 °C	30 °C vs 19 °C
Main model
Lag 0 day	0.24 (0.15, 0.33)	0.10 (0.06, 0.14)	1.34 (0.56, 2.12)	0.71 (0.13, 1.30)	0.53 (0.00, 1.07)
Lag 1 day	0.22 (0.14, 0.29)	0.11 (0.08, 0.15)	1.21 (0.45, 1.97)	0.71 (0.18, 1.24)	0.50 (−0.09, 1.08)
Lag 2 day	0.26 (0.19, 0.34)	0.16 (0.12, 0.19)	0.99 (0.38, 1.61)	0.89 (0.35, 1.42)	0.58 (0.00, 1.15)
Lag 3 day	0.39 (0.32, 0.45)	0.26 (0.23, 0.29)	1.29 (0.56, 2.03)	0.91 (0.23, 1.59)	0.40(−0.14, 0.94)
Lag 4 day	0.37 (0.31, 0.43)	0.23 (0.20, 0.26)	1.50 (0.80, 2.20)	1.02 (0.40, 1.63)	0.55 (0.03, 1.08)
Lag 5 day	0.39 (0.30, 0.47)	0.23 (0.20, 0.27)	1.84 (1.08, 2.60)	0.89 (0.36, 1.42)	0.53 (0.01, 1.05)
Lag 6 day	0.36 (0.31, 0.42)	0.23 (0.19, 0.26)	1.79 (0.96, 2.62)	0.22 (−0.26, 0.70)	0.14 (− 0.30, 0.57)
Model 2	0.25 (0.17, 0.34)	0.14 (0.11, 0.17)	1.20 (0.47, 1.94)	0.70 (0.11, 1.29)	0.49 (0.06, 1.06)

^a Represents the difference of FPG when minimum of daily mean temperature (5 °C) compared with threshold temperature (30 °C) in total population, normal fasting glucose and known T2DM subgroups, the difference of FPG when minimum/maximum of daily mean temperature (5 °C/30 °C) compared with threshold temperature (19 °C) in Newly detected type 2 diabetes patients
Main model was adjusted for age, sex, BMI, education, career, physical activity, sedentary leisure times, smoking status, drinking status, humidity and use of hypoglycemic medicine variables. Model2 was adjusted model 1 and additionally sunshine and precipitation variables

ISSN: 1471-2458