Table 3. RR (95% CI) of urolithiasis presentation cumulated over a 20-day lag period associated with mean daily temperature (°C) relative to 13°C based on data from residents of Seoul, 2005-2013.
| Mean daily temperature | All patients | Male | Female | Male less than 40 yr | Male 40-60 yr | Male more than 60 yr |
|---|---|---|---|---|---|---|
| 31 | 3.15 (1.97-5.03)* | 3.36 (1.91-5.92)* | 2.72 (1.19-6.23)* | 5.17 (2.19-12.20)* | 3.17 (1.35-7.40)* | 0.78 (0.16-3.76) |
| 30 | 2.82 (1.81-4.39)* | 2.94 (1.72-5.02)* | 2.56 (1.17-5.60)* | 4.43 (1.97-9.97)* | 2.79 (1.25-6.24)* | 0.71 (0.16-3.19) |
| 29 | 2.54 (1.67-3.87)* | 2.59 (1.56-4.32)* | 2.42 (1.15-5.07)* | 3.83 (1.78-8.26)* | 2.47 (1.15-5.34)* | 0.66 (0.16-2.77) |
| 28 | 2.30 (1.54-3.44)* | 2.30 (1.42-3.75)* | 2.28 (1.12-4.62)* | 3.34 (1.61-6.93)* | 2.21 (1.06-4.62)* | 0.62 (0.16-2.45) |
| 27 | 2.10 (1.43-3.08)* | 2.06 (1.30-3.29)* | 2.15 (1.09-4.22)* | 2.93 (1.46-5.88)* | 1.99 (0.99-4.04) | 0.59 (0.16-2.21) |
| 26 | 1.92 (1.33-2.77)* | 1.87 (1.20-2.91)* | 2.03 (1.06-3.86)* | 2.59 (1.33-5.03)* | 1.81 (0.92-3.56) | 0.57 (0.16-2.01) |
| 25 | 1.77 (1.25-2.51)* | 1.70 (1.11-2.60)* | 1.91 (1.03-3.53)* | 2.30 (1.22-4.34)* | 1.66 (0.87-3.16) | 0.55 (0.16-1.86) |
| 24 | 1.64 (1.18-2.29)* | 1.56 (1.04-2.34)* | 1.80 (1.01-3.23)* | 2.07 (1.13-3.77)* | 1.53 (0.83-2.82) | 0.55 (0.17-1.73) |
| 23 | 1.53 (1.12-2.09)* | 1.44 (0.99-2.11) | 1.70 (0.98-2.95) | 1.87 (1.06-3.29)* | 1.42 (0.80-2.54) | 0.55 (0.18-1.63) |
| 22 | 1.43 (1.07-1.92)* | 1.35 (0.94-1.92) | 1.61 (0.96-2.68) | 1.70 (1.00-2.88)* | 1.33 (0.77-2.29) | 0.55 (0.20-1.53) |
| 21 | 1.35 (1.03-1.76)* | 1.27 (0.91-1.76) | 1.52 (0.95-2.43) | 1.56 (0.96-2.53) | 1.26 (0.76-2.07) | 0.57 (0.22-1.45) |
| 13 | Reference | Reference | Reference | Reference | Reference | Reference |
| -10 | 0.80 (0.50-1.27) | 1.14 (0.64-2.01) | 0.41 (0.19-0.91)* | 1.21 (0.51-2.83) | 0.91 (0.38-2.16) | 1.69 (0.31-9.20) |
| -11 | 0.76 (0.46-1.26) | 1.17 (0.63-2.16) | 0.34 (0.14-0.80)* | 1.21 (0.48-3.06) | 0.96 (0.38-2.42) | 1.71 (0.28-10.48) |
| -12 | 0.72 (0.41-1.25) | 1.20 (0.61-2.37) | 0.27 (0.10-0.70)* | 1.21 (0.43-3.38) | 1.01 (0.37-2.81) | 1.74 (0.24-12.56) |
| -13 | 0.68 (0.37-1.26) | 1.24 (0.58-2.64) | 0.21 (0.07-0.62)* | 1.21 (0.38-3.83) | 1.08 (0.35-3.36) | 1.77 (0.20-15.89) |
| -14 | 0.63 (0.32-1.28) | 1.28 (0.54-3.01) | 0.17 (0.05-0.55)* | 1.20 (0.33-4.45) | 1.16 (0.32-4.16) | 1.80 (0.15-21.24) |
RR, relative risk; CI, confidence interval.
*P < 0.05.