Skip to main content

Table 2 Clinical Profile and Risk Factors over the Pre-Epidemic, Epidemic, and Post-Epidemic Periods in Africhol Surveillance Data in Conakry, Guinea from 2011 to 2013

From: Temporo-spatial dynamics and behavioural patterns of 2012 cholera epidemic in the African mega-city of Conakry, Guinea

  Pre-epidemic period Epidemic period Post-epidemic period
  Number(%) PRa (95% CI) Number(%) Number(%) PRa (95% CI)
CLINICAL SYMPTOMS
Diarrhea quality      
 Watery 63/65 (97%) 1.0 (1.0–1.1) 1143/1232 (93%) 34/39 (87%) 0.94 (0.83–1.1)
 Rice water 9/65 (14%) 0.18 (0.10–0.33) 942/1208 (78%) 32/38 (84%) 1.1 (0.94–1.2)
 Bloody 0/63 (0) 0 10/1229 (0.8%) 0/39 (0) 0
 Mucous 9/64 (14%) 10 (4.7–22) 17/1226 (1.4%) 5/39 (13%) 9.3 (3.6–24)
Vomiting 60/65 (92%) 1.1 (0.97–1.1) 1062/1203 (88%) 33/38 (87%) 0.98 (0.87–1.1)
Dehydration 61/65 (94%) 3.0 (2.7–3.4) 369/1194 (31%) 33/37 (89%) 2.9 (2.5–3.3)
Dyspnea 3/62 (4.8%) 1.9 (0.60–6.1) 30/1181 (2.5%) 5/36 (14%) 5.5 (2.3–13)
Altered consciousness 9/64 (14%) 2.3 (1.2–4.4) 72/1184 (6.1%) 11/36 (31%) 5.0 (2.9–8.6)
Coma 2/64 (3.1%) 7.5 (1.5–38) 5/1195 (0.4%) 1/35 (2.9%) 6.8 (0.82–57)
PRIMARY WATER SOURCE
 Piped 13/65 (20%) 0.97 (0.59–1.6) 294/1207 (21%) 2/39 (5.1%) 0.25 (0.06–0.96)
 Public tap 40/65 (62%) 0.86 (0.70–1.0) 868/1207 (72%) 15/39 (39%) 0.53 (0.36–0.80)
 River/shallow well/lake 1/65 (1.5%) 0.48 (0.07–3.4) 39/1207 (3.2%) 21/39 (54%) 17 (11–25)
 Other 11/65 (17%) 4.0 (2.2–7.3) 51/1207 (4.2%) 1/39 (2.6%) 0.61 (0.08–4.3)
WATER TREATMENT
 Drinking treated water 6/61 (9.8%) 0.31 (0.14–0.66) 358/1111 (32%) 3/35 (12%) 0.37 (0.13–1.1)
 If treated, treated with chlorine 6/6 (100%) 1.0 (0.89–1.2) 331/342 (97%) 2/2 (100%) 1.0 (0.81–1.3)
RECENT BEHAVIORAL RISK FACTORS
 Contact with suspected cholera case 1/64 (1.6%) 0.08 (0.01–0.53) 241/1167 (21%) 4/39 (10%) 0.50 (0.19–1.3)
 Funeral participation 0 (0) 0 18/1196 (1.5%) 0/39 (0) 0
 Social gathering participation 3/64 (4.7%) 1.0 (0.32–3.1) 56/1195 (4.7%) 1/39 (2.6%) 0.55 (0.08–3.9)
 Visited market 6/65 (9.2%) 0.37 (0.17–0.80) 294/1185 (25%) 2/39 (5.1%) 0.21 (0.05–0.80)
 Travel 3/65 (4.6%) 1.8 (0.57–5.9) 30/1191 (2.5%) 5/39 (13%) 5.1 (2.1–12)
  1. aPrevalence ratios (PR) and 95% confidence intervals (CI) were calculated for the pre-epidemic and post-epidemic periods using the epidemic period as the reference