Table II.
Selected characteristics of new detected cases of leprosy in Shanghai between 2000 and 2019
| Characteristics | Total (n = 145) | Resident patients (n = 16) | Migrant patients (n = 129) | p-value* |
|---|---|---|---|---|
| Sex, n (%) | 0.762 | |||
| Male | 108 (74.5) | 13 (81.2) | 95 (73.6) | |
| Female | 37 (25.5) | 3 (18.8) | 34 (26.4) | |
| Age at diagnosis, n (%) | < 0.001 | |||
| ≤ 20 years | 2 (1.4) | 1 (6.2) | 1 (0.8) | |
| 21–40 years | 95 (65.5) | 3 (18.8) | 92 (71.3) | |
| 41–60 years | 39 (26.9) | 11 (68.8) | 28 (21.7) | |
| > 60 years | 9 (6.2) | 1 (6.2) | 8 (6.2) | |
| Exposure history to leprosy, n (%) | 0.638 | |||
| Yes | 13 (9.0) | 2 (12.5) | 11 (8.5) | |
| No | 132 (91.0) | 14 (87.5) | 118 (91.5) | |
| Type of leprosy, n (%) | 0.489 | |||
| Multibacillary | 119 (82.1) | 12 (75.0) | 107 (82.9) | |
| Paucibacillary | 26 (17.9) | 4 (25.0) | 22 (17.1) | |
| Ridley and Jopling classification of leprosy, n (%) | 0.209 | |||
| TT | 4 (2.8) | 1 (6.2) | 3 (2.3) | |
| BT | 31 (21.4) | 3 (18.8) | 28 (21.7) | |
| BB | 20 (13.8) | 4 (25.0) | 16 (12.4) | |
| BL | 55 (37.9) | 3 (18.8) | 52 (40.3) | |
| LL | 35 (24.1) | 5 (31.2) | 30 (23.3) | |
| Leprosy reactions, n (%) | 0.662 | |||
| Type 1 | 29 (20.0) | 4 (25.0) | 21 (16.3) | |
| Type 2 | 19 (13.1) | 2 (12.5) | 19 (14.7) | |
| No reactions | 97 (66.9) | 10 (62.5) | 89 (69.0) | |
| Grade 2 disabilitya, n (%) | 0.523 | |||
| Yes | 31 (21.4) | 2 (12.5) | 29 (22.5) | |
| No | 114 (78.6) | 14 (87.5) | 100 (77.5) | |
| Lag time from onset of symptom to diagnosis, months, mean (range) | 23.8 (1–112) | 10.8 (1–46) | 25.4 (2–112) | < 0.001 |
| Lag time from first visit to diagnosis, months, mean (range) | 21.7 (0–92) | 9.4 (0–35) | 23.2 (0–92) | < 0.001 |
| Documented misdiagnosis, n (%) | 0.638 | |||
| Yes | 132 (91.0) | 14 (87.5) | 118 (91.5) | |
| No | 13 (9.0) | 2 (12.5) | 11 (8.5) |
a
Leprosy disability grades (GD) in terms of the standard of the sixth leprosy experts committee of the World Health Organization (WHO) (1988).
*
Variables were compared between resident patients and migrant patients.
TT: tuberculosis leprosy; BT: borderline tuberculoid leprosy; BB: borderline leprosy; BL: borderline lepromatous leprosy; LL: lepromatous leprosy.