Table 3 Associations between network parameters and infections, derived from logistic regression analysis, adjusted for characteristics of the participant
Upper respiratory tract infection | Lower respiratory tract infection | Gastrointestinal infection | Urinary tract infection | |||||
|---|---|---|---|---|---|---|---|---|
OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |
Network size (for every additional alter) (mean, SD) | 1.02* | 1.00–1.04 | 1.01 | 0.99–1.04 | 1.03* | 1.01–1.05 | 0.99 | 0.96–1.03 |
Contact frequency | ||||||||
Total contacts per half year (for every 10 additional contacts) (mean, SD) | 1.00 | 0.99–1.01 | 1.00 | 0.99–1.00 | 1.00 | 0.99–1.01 | 1.01 | 1.00–1.02 |
Percentage of alters with daily-weekly ego/alter contact (for every additional 10%) (mean, SD) | 0.96* | 0.93–0.99 | 0.97 | 0.92–1.01 | 0.95* | 0.90–0.99 | 1.05 | 0.99–1.12 |
Percentage of alters with monthly ego/alter contact (for every additional 10%) (mean, SD) | 1.00 | 0.96–1.04 | 0.99 | 0.93–1.05 | 1.05 | 0.99–1.11 | 1.03 | 0.95–1.12 |
Percentage of alters with quarterly ego/alter contact (for every additional 10%) (mean, SD) | 1.02 | 0.96–1.07 | 1.08# | 1.00–1.16 | 1.10** | 1.02–1.18 | 0.93 | 0.82–1.04 |
Percentage of alters with half-yearly ego/alter contact (for every additional 10%) (mean, SD) | 1.06** | 1.01–1.10 | 1.02 | 0.96–1.08 | 0.99 | 0.93–1.05 | 0.92 | 0.84–1.01 |
Proximity | ||||||||
Percentage of alters who are household members (for every additional 10%) (mean, SD) | 0.93* | 0.88–0.99 | 0.98 | 0.90–1.07 | 0.87** | 0.80–0.95 | 1.01 | 0.91–1.13 |
Percentage of alters living within walking distance (for every additional 10%) (mean, SD) | 0.99 | 0.96–1.03 | 1.01 | 0.96–1.07 | 0.99 | 0.94–1.04 | 0.99 | 0.92–1.06 |
Percentage of alters living less than 1/2 h away by car (for every additional 10%) (mean, SD) | 1.00 | 0.97–1.04 | 0.97 | 0.92–1.02 | 1.02 | 0.97–1.07 | 1.01 | 0.94–1.08 |
Percentage of alters living more than 1/2 h away by car (for every additional 10%) (mean, SD) | 1.05* | 1.00–1.10 | 1.07* | 1.00–1.14 | 1.07* | 1.01–1.14 | 0.96 | 0.87–1.06 |
Percentage of alters living further away (for every additional 10%) (mean, SD) | 1.03 | 0.94–1.13 | 0.92 | 0.79–1.07 | 1.02 | 0.90–1.15 | 1.09 | 0.93–1.28 |
Mixing | ||||||||
Percentage of same-sex alters (for every additional 10%) (mean, SD) | 1.00 | 0.96–1.05 | 1.01 | 0.94–1.08 | 1.06# | 0.99–1.14 | 0.93 | 0.85–1.02 |
Percentage of same-age alters (for every additional 10%) (±5 years) (mean, SD) | 0.95* | 0.91–0.99 | 0.92** | 0.86–0.97 | 0.96 | 0.91–1.01 | 0.99 | 0.92–1.07 |
Percentage of younger alters (for every additional 10%) (> 15 years younger) (mean, SD) | 1.00 | 0.91–1.09 | 0.97 | 0.85–1.10 | 0.97 | 0.86–1.10 | 1.03 | 0.86–1.22 |
Percentage of younger alters (for every additional 10%) (5-15 years younger) (mean, SD) | 1.03 | 0.97–1.09 | 1.09* | 1.01–1.18 | 1.09* | 1.01–1.17 | 0.94 | 0.84–1.06 |
Percentage of older alters (for every additional 10%) (> 15 years older) (mean, SD) | 1.04# | 1.00–1.09 | 1.03 | 0.97–1.10 | 0.99 | 0.93–1.05 | 1.03 | 0.95–1.12 |
Percentage of older alters (for every additional 10%) (5–15 years older) (mean, SD) | 1.02 | 0.97–1.08 | 1.07# | 0.99–1.15 | 1.05 | 0.97–1.12 | 1.02 | 0.92–1.14 |
Heterogeneity | ||||||||
Sex heterogeneity (IQV, range 0–1) (mean, SD) | 1.38 | 0.91–2.10 | 1.20 | 0.65–2.22 | 0.92 | 0.53–1.58 | 1.20 | 0.54–2.68 |
Age heterogeneity (per SD increase) (SD) (mean, SD) | 1.01 | 1.00–1.03 | 1.01 | 0.99–1.04 | 1.00 | 0.98–1.02 | 1.00 | 0.96–1.03 |
Type of relationship | ||||||||
Participants who have a partner (%) | 0.99 | 0.80–1.23 | 0.75# | 0.56–1.00 | 0.74* | 0.56–0.97 | 1.35 | 0.87–2.08 |
Percentage of alters who are family members (for every additional 10%) (mean, SD) | 0.97# | 0.94–1.00 | 0.92** | 0.88–0.97 | 0.91*** | 0.87–0.96 | 1.04 | 0.97–1.12 |
Percentage of alters who are friends (for every additional 10%) (mean, SD) | 1.01 | 0.97–1.05 | 1.08* | 1.02–1.14 | 1.12*** | 1.06–1.18 | 0.99 | 0.92–1.08 |
Percentage of alters who are acquaintances (colleague, neighbor, club mate, other) (for every additional 10%) (mean, SD) | 1.04# | 1.00–1.10 | 1.04 | 0.97–1.12 | 1.00 | 0.93–1.07 | 0.93 | 0.83–1.03 |
Proxy for superficial contacts | ||||||||
Number of club memberships (mean, SD) | 1.02 | 0.93–1.11 | 1.03 | 0.91–1.16 | 1.04 | 0.93–1.17 | 0.99 | 0.84–1.16 |
Number of clubs with daily/weekly participation (mean, SD) | 0.99 | 0.89–1.10 | 1.00 | 0.86–1.16 | 1.02 | 0.89–1.18 | 0.97 | 0.79–1.20 |
Number of clubs with monthly participation (mean, SD) | 1.10 | 0.92–1.32 | 1.18 | 0.92–1.51 | 1.06 | 0.83–1.35 | 1.06 | 0.74–1.52 |
Number of clubs with less frequent participation (mean, SD) | 1.01 | 0.80–1.28 | 0.97 | 0.68–1.38 | 1.15 | 0.85–1.55 | 0.95 | 0.58–1.55 |
Network density | ||||||||
Density between friends | ||||||||
- low density (1–3) (%) | 1.00 | 1.00 | 1.00 | 1.00 | ||||
- medium density (4) (%) | 1.13 | 0.92–1.38 | 0.87 | 0.65–1.16 | 0.94 | 0.72–1.24 | 0.90 | 0.60–1.35 |
- high density (5) (%) | 1.08 | 0.86–1.35 | 0.92 | 0.67–1.25 | 0.89 | 0.66–1.20 | 1.09 | 0.71–1.67 |
Density between friends and family | ||||||||
- low density (1–3) (%) | 1.00 | 1.00 | 1.00 | 1.00 | ||||
- medium density (4) (%) | 1.16 | 0.92–1.47 | 0.93 | 0.67–1.29 | 1.01 | 0.74–1.39 | 1.13 | 0.70–1.81 |
- high density (5) (%) | 1.27* | 1.00–1.61 | 0.87 | 0.65–1.26 | 1.04 | 0.75–1.43 | 1.24 | 0.77–2.00 |