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. 2012 Jun 11;7(6):e38166. doi: 10.1371/journal.pone.0038166

Table 1. Demographics of Laboratory-Confirmed pH1N1 Patients, and Case Household and Comparison Household Persons, and Family Size of Case Households and Comparison Households – Kibera, Kenya, 2009–2010.

Patients Case household persons Comparison household persons P valuesa
n = 115 n = 584 n = 2272
Sex
Female 59 (51.3%) 311 (53.3%) 1175 (51.7%) .62
Age (yrs)
Mean (Std)b 10.2 (8.6) 19.7 (14.2) 18.4 (14.1) .31
Median 7.1 16.6 15.8
Minc, maxd 0.6, 41.3 0.1, 67.5 0.04, 70.2
Index household Comparison household
n = 115 n = 460
Family sizee
Mean (Std)b 5.1 (2.4) 4.9 (2.5) .55
Median 5.0 5.0
Minc, maxd 1, 15 1, 17
a

We calculated the P-values to compare case and comparison households by using Cochran-Mantel-Haenszel test for sex and age group, and Wilcoxon signed rank test for age and family size.

b

Std  =  standard deviation.

c

Min  =  minimum.

d

Max  =  Maximum.

e

Analyses of case households family size does not include the index cases.