Prevalence of T2DM in Xiamen.
In 2014, the resident population of Xiamen was 293,2637, and there were 118,468 T2DM patients, with a prevalence of 4.04% (95% CI 4.02–4.06), among which the prevalence was higher among women than men, at 4.72% (95% CI 4.68–4.75) and 3.37% (95% CI 3.34–3.40) respectively. The prevalence of T2DM increases with age, and it grows rapidly after the age of 40. The number of patients aged 50–59 years old was the largest (29,073), with a prevalence of 8.47%(95%CI 8.38–8.56). The prevalence was as high as 17.54%(95%CI 17.33–17.74) in people over 70 years old. The prevalence of T2DM was 0.60%(95%CI, 0.58–0.62) among 18–29 years old (Table 1).
Table 1
Prevalence of type 2 diabetes in 2014 and 2019
2014 population | 2019 population | |
| No. of diabetes | General | prevalent (%) (95%CI) | No. of diabetes | General | prevalent (%) (95%CI) | Difference in incidence (%) (95% CI) | P value |
Total | 118468 | 2932637 | 4.04(4.02–4.06) | 140535 | 2905138 | 4.84(4.81–4.86) | 0.80(0.76–0.83) | < 0.001 |
Sex |
Females | 68641 | 1455557 | 4.72 (4.68–4.75) | 78553 | 1423444 | 5.52 (5.48–5.56) | 0.80 (0.75–0.85) | < 0.001 |
Males | 49787 | 1477080 | 3.37 (3.34–3.40) | 61982 | 1481694 | 4.18 (4.15–4.22) | 0.81 (0.77–0.86) | < 0.001 |
Age, Years | |
18–29 | 5143 | 857876 | 0.60 (0.58–0.62) | 4141 | 530836 | 0.78 (0.76–0.80) | 0.18 (0.15–0.21) | < 0.001 |
30–39 | 14378 | 775476 | 1.85 (1.82–1.88) | 17594 | 836915 | 2.10 (2.07–2.13) | 0.25 (0.21–0.29) | < 0.001 |
40–49 | 19945 | 620726 | 3.21 (3.17–3.26) | 18513 | 627754 | 2.95 (2.91–2.99) | -0.26 (-0.33~-0.20) | < 0.001 |
50–59 | 29073 | 343264 | 8.47 (8.38–8.56) | 29840 | 447403 | 6.67 (6.60–6.74) | -1.80 (-1.92~-1.68) | < 0.001 |
60–69 | 26348 | 194072 | 13.58 (13.42–13.73) | 34804 | 270315 | 12.88 (12.75-13.00) | -0.70 (-0.90~-0.50) | < 0.001 |
≥ 70 | 23581 | 134473 | 17.54 (17.33–17.74) | 35643 | 191915 | 18.57 (18.40-18.75) | 1.04 (0.77 ~ 1.30) | < 0.001 |
(95%CI, 95% confidence interval) |
In 2019, the resident population of Xiamen was 2905138, with a total of 140535 T2DM patients, with a prevalence of 4.84% (95% CI 4.81–4.86). The prevalence of T2DM among women was also higher than men, with 5.52% (95% CI 5.48–5.56) and 4.18% (95% CI 4.15–4.22), respectively. Among the patients, 35643 people over the age of 70 years had the most cases of T2DM, with a prevalence of 18.57% (95%CI 18.40-18.75). The prevalence of T2DM was 0.78%(95%CI 0.76–0.80) among 18–29 years old. The prevalence of T2DM increases with age in both men and women, and increases sharply after age 50.
The change in the prevalence of T2DM in Xiamen.
There was an increase in the total of the prevalence of T2DM from 2014 to 2019, the difference in the increase was 0.80% (95% CI,0.76%-0.83%). The increase from 2014 to 2019 was 0.18% (95% CI,0.15%-0.21%) in 18–29 years, 0.25% (95% CI,0.21%-0.29%) in 30–39 years, and 1.04% (0.77%-1.30%) in ≥ 70 years. There was a reduction from 2014 to 2019 among 40–69 years. The reduction was 0.26% (95% CI,0.20%-0.33%) in 40–49 years, 1.80% (95% CI,1.68%-1.92%) in 50–59 years, and 0.70 (95% CI, 0.50%-0.90%) in 60–69 years (Table 1).
Incidence of T2DM in Xiamen.
In 2014, the incidence of T2DM in Xiamen was 1.41% (95% CI 1.39–1.42), and the incidence of females was higher than that of men, which was 1.59% (95% CI 1.57–1.61) and 1.16% (95% CI 1.14–1.18), respectively. The number of newly diagnosed T2DM patients aged 50–59 years was the largest, and the incidence was 3.04% (95% CI 2.98–3.10). The highest incidence of new cases that occurred at the age of over 70 years was 6.33%(95%CI 6.19–6.47). The incidence of T2DM was 0.26%(95%CI 0.25–0.27) at the age of 18–29 years (Table 2).
Table 2
Incidences of type 2 diabetes in 2014 and 2019
2014 population | 2019 population | |
| No. of diabetes | General | Prevalent (%) (95%CI) | No. of diabetes | General | prevalent (%) (95%CI) | Difference in incidence (%) (95% CI) | P value |
Total | 39947 | 2843850 | 1.41(1.39–1.42) | 41663 | 2780967 | 1.50(1.48–1.51) | 0.09 (0.07–0.11) | < 0.001 |
Sex |
Females | 22274 | 1404400 | 1.59(1.57–1.61) | 22585 | 1355475 | 1.67(1.65–1.69) | 0.08 (0.05–0.11) | < 0.001 |
Males | 16673 | 1439450 | 1.16(1.14–1.18) | 19078 | 1425492 | 1.34(1.32–1.36) | 0.18 (0.15–0.21) | < 0.001 |
Age, Years | |
18–29 | 2253 | 854868 | 0.26 (0.25–0.27) | 1617 | 528056 | 0.31(0.29–0.32) | 0.04 (0.02–0.06) | < 0.001 |
30–39 | 4932 | 765511 | 0.64 (0.63–0.66) | 5455 | 823436 | 0.66 (0.65–0.68) | 0.02(-0.01 ~ 0.04) | 0.155 |
40–49 | 6980 | 606211 | 1.15 (1.13–1.18) | 6664 | 610178 | 1.09 (1.07–1.12) | -0.06(-0.10~-0.02) | 0.002 |
50–59 | 9758 | 321105 | 3.04(2.98–3.10) | 9210 | 421281 | 2.19(2.14–2.23) | -0.85 (-0.93~-0.78) | < 0.001 |
60–69 | 8698 | 180487 | 4.82(4.72–4.92) | 9732 | 238499 | 4.08 (4.00-4.16) | -0.74(-0.87~-0.61) | < 0.001 |
≥ 70 | 7326 | 115678 | 6.33 (6.19–6.47) | 8985 | 159517 | 5.63 (5.52–5.75) | -0.70 (-0.88~-0.52) | < 0.001 |
(95%CI, 95% confidence interval) |
In 2019, the incidence of T2DM was 1.50% (95% CI 1.48–1.51), and the incidence of females was still higher than that of males, which was 1.67% (95% CI 1.65–1.69) and 1.34% (95% CI 1.32–1.36), respectively. The number of newly diagnosed T2DM patients aged 60–69 years was 9732, with an incidence of 4.08%(95%CI 4.00-4.16). The incidence of new T2DM patients over 70 years old was the highest in the same year, as high as 5.63% (95% CI 5.52–5.75). The incidence of T2DM increases with age in both men and women and increases sharply after age 50.
The change in the incidence of T2DM in Xiamen.
There was an increase in the total of the incidence of T2DM from 2014 to 2019, the difference in the increase was 0.09% (95% CI, 0.07–0.11). The increase from 2014 to 2019 was 0.04% (95% CI, 0.02–0.06) in 18–29 years. There was a reduction from 2014 to 2019 over the age of 40. The reduction was 0.06% (95% CI, 0.02 ~ 0.10) in 40–49 years, 0.85% (95% CI, 0.78 ~ 0.93) in 50–59 years, 0.74% (95% CI, 0.61 ~ 0.87) in 60–69 years, and 0.70% (95% CI, 0.52 ~ 0.88) over the age of 70 years (Table 2).
The prevalence of T2DM among the floating population.
In 2019, there were 840,443 floating population in Xiamen, including 7,933 people with T2DM, with a prevalence of 0.94% (95%CI 0.92–0.97), and the prevalence in female was higher than that of males, which was 1.42% (95%CI 1.38–1.45) and 0.58% (95%CI 0.56–0.60), respectively. Among them, the age of 30–39 years old was the largest patients with T2DM, and the prevalence was 1.13% (95% CI 1.09–1.17). The prevalence of T2DM over 70 years old was the highest, as high as 2.64% (95% CI 2.26–3.01) (Table 3).
Table 3
Prevalence of type 2 diabetes in the floating population in 2019
| No. of diabetes | Population | Estimate (%) | 95% CI |
Total | 7933 | 840443 | 0.94 | 0.92–0.97 |
Sex |
Females | 5203 | 367754 | 1.42 | 1.38–1.45 |
Males | 2730 | 472689 | 0.58 | 0.56–0.60 |
Age, years |
18–29 | 1388 | 307385 | 0.45 | 0.43–0.48 |
30–39 | 3010 | 265476 | 1.13 | 1.09–1.17 |
40–49 | 1589 | 143763 | 1.11 | 1.05–1.16 |
50–59 | 1229 | 86816 | 1.42 | 1.34–1.49 |
60–69 | 532 | 30017 | 1.77 | 1.62–1.92 |
≥ 70 | 185 | 7016 | 2.64 | 2.26–3.01 |
(95%CI, 95% confidence interval) |