Table 2.
Descriptive statistics of the laboratory-confirmed dengue patients notified in Surat city, Gujarat, India, 2011–2016
| Variable | 2011 n = 69 (%) | 2012 n = 167 (%) | 2013 n = 344 (%) | 2014 n = 363 (%) | 2015 n = 501 (%) | 2016 n = 1,002 (%) | 2011–2016 n = 2,446 (%) |
|---|---|---|---|---|---|---|---|
| Mean age ± SD (years) | 21.2 ± 12.5 | 22.6 + 11.2 | 22.3 + 12 | 21.4 + 11.3 | 21.8 + 11.5 | 21.4 + 12.7 | 21.7 ± 12 |
| Median age (IQR) (years) | 21 (12–25) | 22 (16–28) | 20 (15–30) | 20 (14–28) | 20 (14–28) | 20 (12–28) | 20 (14–28) |
| Gender | |||||||
| Male | 45 (65.2) | 94 (56.3) | 212 (61.6) | 215 (59.2) | 315 (62.9) | 626 (62.5) | 1,507 (61.6) |
| Female | 24 (34.8) | 73 (43.7) | 132 (38.4) | 148 (40.8) | 186 (37.1) | 376 (37.5) | 939 (38.4) |
| Duration between onset of fever and blood collection for serology (days) | |||||||
| Mean ± SD | 6 ± 2.7 | 6.6 + 3.4 | 5.9 + 3.5 | 5.2 + 3.4 | 5.2 + 5.4 | 4.9 + 3.1 | 5.2 ± 3.8 |
| Median (IQR) | 5 (4–7) | 6 (5–7) | 5 (4–7) | 5 (3–7) | 4 (3–6) | 4 (3–6) | 4 (3–7) |
| Laboratory diagnosis | |||||||
| NS1 | – | – | 67 (19.5) | 159 (43.8) | 257 (51.3) | 519 (51.8) | 1,002 (40.9) |
| IgM antibody | 69 (100) | 167 (100) | 258 (75) | 160 (44.1) | 184 (36.7) | 382 (38.1) | 1,220 (49.9) |
| Both | – | – | 19 (5.5) | 44 (12.1) | 60 (12) | 101 (10.1) | 224 (9.2) |
| Patients notified according to facility type* | |||||||
| Government medical college and hospital | 41 (59.4) | 87 (52) | 182 (52.9) | 193 (53.2) | 208 (41.5) | 313 (31.2) | 1,024 (41.9) |
| Health facilities from Surat municipal corporation | 18 (26.1) | 39 (23.4) | 126 (36.6) | 105 (28.9) | 156 (31.1) | 432 (43.1) | 876 (35.8) |
| Private health facilities | 10 (14.5) | 41 (24.6) | 36 (10.5) | 65 (17.9) | 137 (27.4) | 257 (25.7) | 546 (22.3) |
*
Government medical college hospital and health facilities from Surat Municipal Corporation together constitute the public sector.