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Table 3 Distribution of extra-cutaneous disease associated with psoriasis in the 3 Italian areas

From: Analysis of health care and actual needs of patients with psoriasis: a survey on the Italian population

  Males (total no. of cases: 991) Females (total no. of cases: 963)
Disease category (ICD§ code number) North No. (%) Centre No. (%) South No. (%) p North No. (%) Centre No. (%) South No. (%) p
Depression (296)
Present 34 (8.6) 56 (18.7) 43 (14.6)   59 (18.7) 53 (16.8) 57 (17.2)  
Absent 363 (91.4) 244 (81.3) 251 (85.4) 0.0004 257 (81.3) 263 (83.2) 274 (82.8) 0.81
Myalgia (729.1)
Present 0 (0.0) 2 (0.7) 3 (1.0)   0 (0.0) 6 (1.9) 7 (2.1)  
Absent 397 (100.0) 298 (99.3) 291 (99.0) - 316 (100.0) 310 (98.1) 324 (97.9) -
Obesità (278)
Present 39 (9.8) 23 (7.7) 27 (9.2)   29 (9.2) 32 (10.1) 34 (10.3)  
Absent 358 (90.2) 277(92.3) 267 (90.8) 0.61 287 (98.8) 284 (89.9) 297 (89.7) 0.88
Type 2 DM (250)
Present 29 (7.3) 15 (5.0) 21 (7.19)   23 (7.3) 12 (3.8) 43 (13.0)  
Absent 368 (92.7) 285 (95.09) 273 (92.9) 0.42 293 (92.7) 304 (96.2) 288 (87.0) < 0.0001
Hypertension (401)
Present 71 (17.9) 52 (17.3) 38 (12.9)   41 (13.0) 24 (7.6) 35 (10.6)  
Absent 326 (82.19 248 (82.7) 256 (87.1) 0.18 275 (87.0) 292 (92.4) 296 (89.4) 0.08
Heart disease(410–414)
Present 7 (1.8) 2 (0.7) 14 (4.8)   1 (0.3) 0 (0.0) 7 (2.1)  
Absent 390 (98.2) 298 (99.3) 280 (95.2) 0.003 315 (99.7) 316 (100.0) 324 (97.9) -
Herpes virus (054)
Present 5 (1.3) 11 (3.7) 10 (3.4)   18 (5.7) 15 (4.7) 10 (3.0)  
Absent 392 (98.7) 289 (96.3) 284 (96.6) 0.08 298 (94.3) 301 (95.3) 321 (97.0) 0.25
Other *
Present 2 (0.5) 4 (1.3) 10 (3.4)   6 (1.9) 9 (2.8) 6 (1.8)  
Absent 395 (99.5) 296 (98.7) 284 (96.6) 0.01 310 (98.1) 307 (97.2) 325 (98.2) 0.61
  1. § ICD = IX International Classification Diseases
  2. * iritis (364), lupus (710.0)
  3. P values were calculated for the diseases whose expected values were more than 5 for 80% of cells and none expected value less than 1.